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The Common Descent Podcast

The Common Descent Podcast

Join David and Will as they explore the paleontologists? perspective on various topics in life and earth history. Each episode features a main discussion on a topic requested by the listeners, presented as a lighthearted and educational conversation about fossils, evolution, deep time, and more. Before the main discussion, each episode also includes a news segment, covering recent research related to paleontology and evolution. Each episode ends with the answer to a question submitted by subscribers on Patreon. New episodes with new topics every fortnight!

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Spotlight 2024 - Adele Pentland, Pals in Palaeo

Welcome to Spotlight 2024! In this series, we?re sitting down with our fellow paleo-podcasters to discuss Science Communication.

In this first episode, our guest is Adele Pentland, host of Pals in Palaeo!

Find Adele and Pals in Palaeo in these places: https://adelepentland.com/ https://palsinpalaeo.com/ https://www.instagram.com/palsinpalaeo/ https://www.instagram.com/palaeodel/

Connect with Common Descent: https://linktr.ee/common_descent

Join us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast

Got a topic you want to hear about? Submit your episode request here: https://commondescentpodcast.com/request-a-topic/

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

2024-03-07
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Episode 186 - Owls

Owls are among the world?s most iconic and charismatic birds, and they?re also among the most effective aerial predators. This episode, we?ll take a tour of the amazing adaptations that have allowed owls to achieve their modern diversity and worldwide range, and we?ll explore what we know ? and what we don?t ? about their evolutionary history.

In the news: snake evolution, ancient polar life, dinosaur joints, and dragon teeth.

Time markers: Intro & Announcements: 00:00:00 News: 00:05:10 Main discussion, Part 1: 00:40:35 Main discussion, Part 2: 01:23:50 Patron question: 02:03:15

Check out our website for this episode?s blog post and more: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast

Got a topic you want to hear about? Submit your episode request here: https://commondescentpodcast.com/request-a-topic/

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

Lots more ways to connect with us: https://linktr.ee/common_descent

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2024-03-03
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Episode 185 - Cacti

Cacti are famous for their spine-shaped leaves, their water-retaining tissues, their green stems, and especially for being among the most well-adapted organisms on Earth for dry environments. This episode, we?re joined by Dr. Aly Baumgartner to discuss the diversity of cacti, their unique adaptations for an unusual lifestyle, and their mysterious evolutionary past.

In the news: Stone Age jewelry, kelp fossils, long-jawed fish, and early trees.

Time markers: Intro & Announcements: 00:00:00 News: 00:06:00 Main discussion, Part 1: 00:38:25 Main discussion, Part 2: 01:25:00 Patron question: 02:04:00

Check out our website for this episode?s blog post and more: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast

Got a topic you want to hear about? Submit your episode request here: https://commondescentpodcast.com/request-a-topic/

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

Lots more ways to connect with us: https://linktr.ee/common_descent

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2024-02-18
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Episode 184 - Richard Owen

A familiar name to modern biologists and paleontologists, Sir Richard Owen is famous for his pioneering work in the fields of paleontology and comparative anatomy, his contributions to public appreciation of biological sciences, and his often antagonistic relationships with contemporary scientists. This episode, we?ll explore Owen?s major scientific contributions and his long-standing reputation as a villain of 19th Century science.

In the news: temnospondyl survivors, big sauropods, dinosaur hunting, and mammoth journeys.

Time markers: Intro & Announcements: 00:00:00 News: 00:04:50 Main discussion, Part 1: 00:32:10 Main discussion, Part 2: 01:04:30 Patron question: 01:36:35

Check out our website for this episode?s blog post and more: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast

Got a topic you want to hear about? Submit your episode request here: https://commondescentpodcast.com/request-a-topic/

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

Lots more ways to connect with us: https://linktr.ee/common_descent

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2024-02-04
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Episode 183 - Feathers

Feathers are among the most diverse and complex forms of animal integument. Today, they?re exclusive to birds, where they can be found in a dizzying variety of forms and functions, and incredible fossils reveal even more diversity of feathers on ancient dinosaurs. This episode, we explore the features of modern feathers, the mysteries of feather origins, and the much-discussed question of which ancient animals were truly feathered.

In the news: sturdy bird necks, giant worms, early photosynthesis, and very old skin.

Time markers: Intro & Announcements: 00:00:00 News: 00:06:20 Main discussion, Part 1: 00:37:00 Main discussion, Part 2: 01:15:55 Patron question: 02:11:30

Check out our website for this episode?s blog post and more: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast

Got a topic you want to hear about? Submit your episode request here: https://commondescentpodcast.com/request-a-topic/

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

Lots more ways to connect with us: https://linktr.ee/common_descent

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2024-01-21
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Episode 182 - Camouflage

Blending in with the surroundings is an incredibly useful habit. Even without evidence, this fact would be obvious from the sheer variety of organisms that do it and the vast diversity of strategies and adaptations they use. This episode, we look at what camouflage is and how it works in its many forms, and we explore how we can spot camouflage ? and what we can learn from it ? in the fossil record.

In the news: curled-up trilobites, Antarctic octopus DNA, crab organs, and giant whales.

Time markers: Intro & Announcements: 00:00:00 News: 00:05:35 Main discussion, Part 1: 00:37:25 Main discussion, Part 2: 01:29:35 Patron question: 02:14:40

Check out our website for this episode?s blog post and more: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast

Got a topic you want to hear about? Submit your episode request here: https://commondescentpodcast.com/request-a-topic/

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

Lots more ways to connect with us: https://linktr.ee/common_descent

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2024-01-07
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End of the Year Q&A 2023

Happy New Year!

It?s time again for our annual answering-your-questions marathon episode! Thanks to all our askers for a great set of questions!

And as always, a huge thanks to all of you who have supported the podcast this year, whether you?re a top-tier Patron or a newcomer who?s just a couple episodes in. You make Common Descent possible.

Now sit back and enjoy several hours of us rambling about whatever you asked about.

Check out our website for blog posts and more: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast

Got a topic you want to hear about? Submit your episode request here: https://commondescentpodcast.com/request-a-topic/

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

Lots more ways to connect with us: https://linktr.ee/common_descent

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

2023-12-31
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Episode 181 - Dragonflies

Dragonflies and damselflies are incredible insects. They are arguably the world?s most skilled fliers, arguably the world?s most successful predators, and arguably the best insects (so says David). Not only that, they and their ancient cousins have been abundant and successful aerial predators for over 300 million years. This episode, we discuss what sets these bugs apart from all the rest, we explore what?s known of their evolution from their surprisingly good fossil record, and of course we highlight their most famous extinct cousins: the giant griffenflies.

In the news: croc habitats, tyrannosaur food, elephant trunks, and early mosquitos.

Time markers: Intro & Announcements: 00:00:00 News: 00:04:30 Main discussion, Part 1: 00:34:15 Main discussion, Part 2: 01:13:15 Patron question: 01:53:45

Check out our website for this episode?s blog post and more: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast

Got a topic you want to hear about? Submit your episode request here: https://commondescentpodcast.com/request-a-topic/

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

Lots more ways to connect with us: https://linktr.ee/common_descent

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-12-24
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Episode 180 - Filter Feeding

Filter feeding is among the most widespread dietary strategies in the world. From tiny bivalves to massive basking sharks, animals have developed a vast array of convergent strategies for filtering tiny food particles out of the water. This episode, we discuss what it takes to be a filter feeder, why it?s so common, the various methods animals employ to make it happen, and how we try (sometimes successfully) to identify filter feeding in the fossil record.

In the news: Thailand trilobites, mammal aging, bird-like footprints, and whale echolocation.

Time markers: Intro & Announcements: 00:00:00 News: 00:04:55 Main discussion, Part 1: 00:38:30 Main discussion, Part 2: 01:22:00 Patron question: 02:04:30

Check out our website for this episode?s blog post and more: http://commondescentpodcast.com/

The End of the Year Q&A submission form is open! Submit your question here: https://forms.gle/EeAMhEfnatVWqmnS9

Join us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast

Got a topic you want to hear about? Submit your episode request here: https://commondescentpodcast.com/request-a-topic/

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

Lots more ways to connect with us: https://linktr.ee/common_descent

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-12-10
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Patron Mini-Episode Compilation #4

Mini-episodes are rewards for our high-level supporters on Patreon, each one focusing on a requested topic for a specific Patron. From time to time, we combine a bunch of these and release them as a bundle for all our listeners to enjoy. Enjoy!

A huge thanks as always to our Patrons for their kind and generous contributions to our education efforts.

Intro: 00:00:00 Icarosaurus for Elizabeth - 00:02:25 Corvids for Stephen - 00:17:20 Thylacines for Traci - 00:40:45 Shrikes for Oscar - 01:02:10 Entelodonts for Lucy - 01:20:15 Iguanas for Tobias - 01:46:40

Check out our website for blog posts, additional content, and more: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast

Got a topic you want to hear about? Submit your episode request here: https://commondescentpodcast.com/request-a-topic/

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

Lots more ways to connect with us: https://linktr.ee/common_descent

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-12-04
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Episode 179 - Thermoregulation

If things get too hot or too cold, the crucial processes inside the cells and tissues of living organisms stop working properly, and that?s bad. So, organisms expend a lot of time and energy managing their body temperatures. This episode, we break down the familiar concepts of ?warm-blooded? and ?cold-blooded,? we discuss the many adaptations that animals use to manage the heat, we explore what evidence allows us to interpret thermoregulatory strategies in the fossil record, and we investigate what is known about how these strategies have evolved over time.

In the news: soft robot echinoderms, bird tracks, taste evolution, and dinosaur eggs.

Time markers: Intro & Announcements: 00:00:00 News: 00:04:45 Main discussion, Part 1: 00:36:00 Main discussion, Part 2: 01:20:30 Patron question: 1:59:00

Check out our website for this episode?s blog post and more: http://commondescentpodcast.com/

The End of the Year Q&A submission form is open! Submit your question here: https://forms.gle/EeAMhEfnatVWqmnS9

Join us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast

Got a topic you want to hear about? Submit your episode request here: https://commondescentpodcast.com/request-a-topic/

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

Lots more ways to connect with us: https://linktr.ee/common_descent

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-11-26
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Episode 178 - Ears

Listen up! The world around us is full of sound, and animals have evolved numerous strategies for receiving and interpreting those sounds. In this episode, we discuss the many varieties of sound-sensing organs and how they?ve evolved repeatedly throughout life history. We?ll also explore some of the other important things that ears can do, including the ever-important task of maintaining our equilibrium.

In the news: carnivorous lampreys, caterpillar legs, early dragonflies, and the sea star body plan.

Time markers: Intro & Announcements: 00:00:00 News: 00:06:10 Main discussion, Part 1: 00:36:45 Main discussion, Part 2: 01:30:15 Patron question: 2:14:05

Check out our website for this episode?s blog post and more: http://commondescentpodcast.com/

The End of the Year Q&A submission form is open! Submit your question here: https://forms.gle/EeAMhEfnatVWqmnS9

Join us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast

Got a topic you want to hear about? Submit your episode request here: https://commondescentpodcast.com/request-a-topic/

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

Lots more ways to connect with us: https://linktr.ee/common_descent

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-11-12
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Cute-E - Friendly Dragons

Welcome ? to Cute-E!

Every October during Spook-E, we have fun speculatively evolving monsters from myths and stories, but we leave out the cuddlier side of fiction. In Cute-E, we?re choosing kinder creatures and discussing how they ? or something like them - might evolve under the rules of evolution and natural selection, pulling inspiration from organisms of the real world. This year?s theme: Dragons.

This episode, we snuggle up with the sweeter side of dragons. How might natural processes produce intelligent, social, and even amicable draconic beasts? Our creatures to create this time: Friendly Dragons.

Join the Common Descent Discord server for more Spook-E discussion! https://discord.gg/CwPBxdh9Ev

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

More ways to connect with us: https://linktr.ee/common_descent

You can email us at commondescentpodcast@gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

2023-11-04
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Episode 177 - Neanderthals

These days, we Homo sapiens are the only humans around, but that wasn?t always the case. This episode, we are joined by special guest Dr. Bridget Alex to discuss our most famous extinct cousins, Neanderthals. We explore what makes them similar and dissimilar to us, what evidence we use to study their lives and culture, and how our understanding of them has grown from outdated misrepresentations to the complex and fascinating people we now know them to have been.

In the news: a fossil bat skull, beaver evolution, early pliosaurs, and Ancient Egyptian snakes

Time markers: Intro & Announcements: 00:00:00 News: 00:06:25 Main discussion, Part 1: 00:41:00 Main discussion, Part 2: 01:38:35 Patron question: 02:30:35

Find Dr. Alex on her website: bridgetalex.com Or follow her on Twitter: @bannelia

Check out our website for this episode?s blog post and more: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast

Got a topic you want to hear about? Submit your episode request here: https://commondescentpodcast.com/request-a-topic/

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

Lots more ways to connect with us: https://linktr.ee/common_descent

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-10-29
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Spook-E - Turtle Dragons

Welcome ... to Spookulative Evolution.

It?s October, and that means it?s Spook-E Season once again! Each episode in the series, we pick a type of monster and explore how it ? or something like it ? might evolve under the rules of evolution and natural selection, pulling inspiration from life in the real world. This year?s theme: Dragons.

This episode, we combine some disparate mythologies. How could nature give rise to a shelled wonder with a mixed reputation? Our creatures to create this time: Turtle Dragons.

Join the Common Descent Discord server for more Spook-E discussion! https://discord.gg/CwPBxdh9Ev

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

More ways to connect with us: https://linktr.ee/common_descent

You can email us at commondescentpodcast@gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

2023-10-28
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Spook-E - Wyverns

Welcome ... to Spookulative Evolution.

It?s October, and that means it?s Spook-E Season once again! Each episode in the series, we pick a type of monster and explore how it ? or something like it ? might evolve under the rules of evolution and natural selection, pulling inspiration from life in the real world. This year?s theme: Dragons.

This episode, we investigate a modern favorite. How could natural selection give us a (perhaps) more reasonably shaped dragon? Our creatures to create this time: Wyverns.

Join the Common Descent Discord server for more Spook-E discussion! https://discord.gg/CwPBxdh9Ev

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

More ways to connect with us: https://linktr.ee/common_descent

You can email us at commondescentpodcast@gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

2023-10-21
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Episode 176 - Hadrosaurs

Hadrosaurs (the so-called ?duckbill? dinosaurs) and their fellow ornithopods were among the most abundant and successful dinosaur groups of all time. This episode, we discuss their evolution and diversity, and we explore some of the most outstanding and unique features of the group, including their incredible fossil record, complex social behaviors, wacky head ornaments, and their truly incredible mouths.

In the news: fluorescent mammals, snake tracks, leaf mining, and terror bird footprints.

Time markers: Intro & Announcements: 00:00:00 News: 00:06:40 Main discussion, Part 1: 00:41:30 Main discussion, Part 2: 01:14:25 Patron question: 02:18:15

Check out our website for this episode?s blog post and more: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast

Got a topic you want to hear about? Submit your episode request here: https://commondescentpodcast.com/request-a-topic/

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

Lots more ways to connect with us: https://linktr.ee/common_descent

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-10-15
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Spook-E - East Asian Dragons

Welcome ... to Spookulative Evolution.

It?s October, and that means it?s Spook-E Season once again! Each episode in the series, we pick a type of monster and explore how it ? or something like it ? might evolve under the rules of evolution and natural selection, pulling inspiration from life in the real world. This year?s theme: Dragons.

This episode, we travel to another part of the world. How could we end up with an elemental being that combines the features of many animals? Our creatures to create this time: East Asian Dragons.

Join the Common Descent Discord server for more Spook-E discussion! https://discord.gg/CwPBxdh9Ev

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

More ways to connect with us: https://linktr.ee/common_descent

You can email us at commondescentpodcast@gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

2023-10-14
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Spook-E - European Dragons

Welcome ... to Spookulative Evolution.

It?s October, and that means it?s Spook-E Season once again! Each episode in the series, we pick a type of monster and explore how it ? or something like it ? might evolve under the rules of evolution and natural selection, pulling inspiration from life in the real world. This year?s theme: Dragons.

This episode, we start with something familiar. How might evolution produce a fearsome serpentine beast with four legs and two wings? Our creatures to create this time: European Dragons.

Join the Common Descent Discord server for more Spook-E discussion! https://discord.gg/CwPBxdh9Ev

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

More ways to connect with us: https://linktr.ee/common_descent

You can email us at commondescentpodcast@gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

2023-10-07
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Episode 175 - Plant Defenses

Plants are delicious, nutritious, and full of energy, so they?re prime targets for all sorts of herbivores, parasites, and pathogens. But plants aren?t just sitting passively accepting attacks, they use a variety of strategies to defend themselves, from the frustrating to the fatal. This episode, we?re joined by our favorite paleobotanist, Aly Baumgartner, to discuss the many ways plants defend themselves ? physically, chemically, and beyond ? and the fascinating evolutionary history of plant defenses and their offenders.

In the news: deep-sea fish, Wollemi pines, learning birds, and plant technology.

Time markers: Intro & Announcements: 00:00:00 News: 00:06:55 Main discussion, Part 1: 00:38:15 Main discussion, Part 2: 01:12:25 Patron question: 01:48:10

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

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You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-10-01
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Episode 174 - The Mesozoic Marine Revolution

Earth?s oceans change over time, not just in their size and shape, but also in the very dynamics of their ecosystems. The stage was set for modern ocean ecosystems by an event called the Mesozoic Marine Revolution, a dramatic restructuring of ecology in shallow seas that saw the rise of many forms of active predatory lifestyles. This episode, we discuss the fossil evidence, the major players, and the ongoing and sometimes contentious research into this crucial period.

In the news: early arthropods, early apes, prehistoric ravens, and long-necked marine reptiles.

Time markers: Intro & Announcements: 00:00:00 News: 00:07:00 Main discussion, Part 1: 00:35:00 Main discussion, Part 2: 01:18:35 Patron question: 01:51:00

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

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Got a topic you want to hear about? Submit your episode request here: https://commondescentpodcast.com/request-a-topic/

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You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

 
2023-09-17
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Episode 173 - Herbivores (Plant-Eaters)

Eating plants isn?t easy, and yet the habit has evolved many times over the history of life on Earth, and herbivores have become essential components of ecosystems as we know them. This episode, we discuss the adaptations animals use to get around the challenges of plant-eating, as well as the incredible history of the repeated origins of herbivory.

In the news: vampire squids, death by ammonite, early archosaurs, and dinosaur tracks.

Time markers: Intro & Announcements: 00:00:00 News: 00:06:35 Main discussion, Part 1: 00:37:10 Main discussion, Part 2: 01:18:35 Patron question: 02:04:00

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

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Got a topic you want to hear about? Submit your episode request here: https://commondescentpodcast.com/request-a-topic/

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You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-09-03
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Silver Screen Science - 65 (2023)

There?s a new paleontology-adjacent movie out there, and as usual, it?s a great opportunity to examine how science is translated to the big screen.

Back to the Cretaceous (kind of) ? 65 (2023)

Check out our website for more stuff: http://commondescentpodcast.com/

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You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

2023-08-27
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Episode 172 - Toothed Whales

For much of their evolutionary history, whales have been divided into two main lineages: baleen whales and toothed whales. The toothed variety are especially diverse today, including sperm whales, belugas, porpoises, and so, so many dolphins (among others). This episode, we explore what makes toothed whales distinct ? besides the obvious ? and what the whale fossil record tells us about how they came to be among the most successful marine animals in Earth history.

In the news: leaf-eating birds, tiny whales, whale-like reptiles, and giant whales.

Time markers: Intro & Announcements: 00:00:00 News: 00:07:25 Main discussion, Part 1: 00:42:45 Main discussion, Part 2: 01:24:15 Patron question: 02:23:45

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast

Got a topic you want to hear about? Submit your episode request here: https://commondescentpodcast.com/request-a-topic/

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You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-08-20
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Episode 171 - The Tethys Sea

Throughout Earth history, tectonic forces have changed the shape of the continents ? and the oceans! You might be familiar with the Tethys Sea as an ancient ocean nestled against Pangaea, home to marine reptiles and more, but there?s actually a whole series of ancient bodies of water that bear this name. In this episode, we explore the various iterations of the Tethys, discuss how geologists study them, and examine how these ancient oceans shaped the world as we know it today.

In the news: crocodile conservation, fighting fossils, whale evolution, and bird tracks.

Time markers: Intro & Announcements: 00:00:00 News: 00:05:40 Main discussion, Part 1: 00:43:15 Main discussion, Part 2: 01:06:15 Patron question: 01:30:45

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast

Got a topic you want to hear about? Submit your episode request here: https://commondescentpodcast.com/request-a-topic/

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

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You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-08-06
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Episode 170 - Milk

Mammals are famous for their ability to produce milk, a special substance that is essential for providing newborns with the ingredients they need for healthy development. As it turns out, mammals aren?t the only ones. Milk-like substances have evolved in many groups of animals which nourish their developing young. In this episode, we discuss what milk is, what it does, how it seems to have evolved, and the surprisingly long list of times animals have evolved the habit of providing nutritious fluids to feed their offspring.

In the news: Anomalocaris diets, Asian alligators, ancient puberty, and the Cambrian Explosion.

Time markers: Intro & Announcements: 00:00:00 News: 00:05:55 Main discussion, Part 1: 00:41:30 Main discussion, Part 2: 01:29:35 Patron question: 02:04:10

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast

Listen to David talk about snake paleontology on Snake Talk! https://www.oriannesociety.org/snake-talk/

Listen to Will and David discuss the evolution of flight on Little Curiosities! https://listen.qcodemedia.com/littlecuriosities

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

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You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-07-23
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Snake Stuff with David

Happy Snake Month!

In this special episode, it?s all about snakes with our very own snake-enthusiast: David!

Thanks to our Patrons for providing the inspiration for these interview questions!

Join us on Patreon to support the podcast our scaly friends! https://www.patreon.com/commondescentpodcast

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

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Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: https://www.instagram.com/commondescentpodcast/ YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

2023-07-16
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Episode 169 - Sea Snakes

Snakes are surprisingly good at adapting to life in saltwater. Today?s seafaring serpents include a wide diversity of semi-marine species as well as a fascinating assortment of fully oceanic snakes, and this is a tradition that extends well into the past, with numerous radiations of ancient sea snakes. This episode, we explore the repeated evolution of marine lifestyles in snakes, and the array of adaptations that have allowed them to take to the sea. Happy Snake Month!

In the news: dinosaur hands, snake genetics, decapitated reptiles, and cartwheeling snakes.

Time markers: Intro & Announcements: 00:00:00 News: 00:06:10 Main discussion, Part 1: 00:35:15 Main discussion, Part 2: 01:19:35 Patron question: 01:54:30

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast

Listen to David talk about snake paleontology on Snake Talk! https://www.oriannesociety.org/snake-talk/

Listen to Will and David discuss the evolution of flight on Little Curiosities! https://listen.qcodemedia.com/littlecuriosities

Learn more about Disability Pride Month! https://thearc.org/blog/why-and-how-to-celebrate-disability-pride-month-2023/

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

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Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: https://www.instagram.com/commondescentpodcast/ YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-07-09
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Episode 168 ? Marine Crocs

Most crocodilians today can handle saltwater to some degree, but many of their ancient cousins were much more suited to a life at sea, including some of the most impressive ocean-going reptiles in history. In this episode, we?ll explore the many lineages of marine crocs that have evolved over the last 150 million years, and we?ll dive into the special adaptations that allowed them to take to the seas over and over again. Happy Croc Month!

In the news: a dinosaur transition, tusked dolphins, bird flutes, and crocodile parthenogenesis

Time markers: Intro & Announcements: 00:00:00 News: 00:06:18 Main discussion, Part 1: 00:41:55 Main discussion, Part 2: 01:13:55 Patron question: 01:53:50

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

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Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: https://www.instagram.com/commondescentpodcast/ YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-06-25
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Croc Chat with Will

Happy Croc Month!

In this special episode, we talk about crocs with the croc-fanatic himself: our very own Will!

Thanks to our Patrons for providing the inspiration for these interview questions!

Join us on Patreon to support the podcast our scaly friends! https://www.patreon.com/commondescentpodcast

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

Or make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp

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You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

2023-06-17
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Episode 167 ? Geologic Dating

When scientists find a new rock formation or fossil assemblage, how do they determine how old it is? The answer lies in the many varied methods of geologic dating. In this episode, we?ll discuss how we can sort the events in Earth history, how we calculate specific ages for ancient materials ? including a deep-dive into radiometric dating! ? and most importantly, how these many techniques support and complement each other.

In the news: gaze following, polar pterosaurs, pachycephalosaur heads, and giant marsupials.

Time markers: Intro & Announcements: 00:00:00 News: 00:06:50 Main discussion, Part 1: 00:38:45 Main discussion, Part 2: 01:31:10 Patron question: 02:20:18

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

Trans Lifeline connects trans people to community support and resources: https://translifeline.org/

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent

Or make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp

Find merch at the Common Descent Store! http://zazzle.com/common_descent

Join the Common Descent Discord server! https://discord.gg/CwPBxdh9Ev

Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: https://www.instagram.com/commondescentpodcast/ YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

 

2023-06-11
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Episode 166 - Monotremes

In our modern world, there are three major groups of mammals: placentals (that?s most of us), marsupials, and the rare and bizarre monotremes. Today?s monotremes ? that?s echidnas and platypuses ? are famous for their seemingly ?un-mammalian? features: they lack external ears, they deliver milk without nipples, and they even lay eggs! This episode, we discuss what makes monotremes unique, the many questions still unanswered about their ancient history, and whether or not they are truly good representatives of early mammal evolution.

In the news: weird mosasaur teeth, Tibetan sabertooths, marsupial growth, and giant pliosaurs.

Time markers: Intro & Announcements: 00:00:00 News: 00:07:50 Main discussion, Part 1: 00:38:00 Main discussion, Part 2: 01:11:40 Patron question: 02:01:10

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast

We?re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: www.audibletrial.com/CommonDescent

Or make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp

Find merch at the Common Descent Store! http://zazzle.com/common_descent

Join the Common Descent Discord server! https://discord.gg/CwPBxdh9Ev

Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: https://www.instagram.com/commondescentpodcast/ YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-05-28
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Episode 165 - Fruit

One of the hallmarks of angiosperms (flowering plants) is the formation of a container to hold their seeds. These containers are fruits, and they come in an astonishing variety of forms and functions, far beyond the typical line up of fruits, nuts, and berries we see at the grocery store. Join us and our favorite paleobotanist Dr. Aly Baumgartner as we explore what fruits are, what fruits do, and how fruits came to be so ubiquitous and important in modern ecosystems.

In the news: big predatory amphibians, exceptional fossil preservation, origins of blinking, and cycad cones.

Time markers: Intro & Announcements: 00:00:00 News: 00:05:45 Main discussion, Part 1: 00:40:30 Main discussion, Part 2: 01:36:30 Patron question: 02:14:15

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast

Follow this link for a 30-day free trial to Audible! www.audibletrial.com/CommonDescent

Or make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp

Find merch at the Common Descent Store! http://zazzle.com/common_descent

Join the Common Descent Discord server! https://discord.gg/CwPBxdh9Ev

Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: @commondescentpodcast YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-05-14
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Episode 164 - The ?Boring Billion?

From roughly 1.8 ? 0.8 billion years ago, things on Earth seemingly slowed down. The geologic record shows a conspicuous lack of evidence for major climatic, tectonic, or biological changes, a dramatic contrast to the tumultuous times before and after. In this episode, we explore this so-called ?Boring Billion? and discuss what made it so unusual. Along the way, we?ll examine claims that there might have been more going on than we think, that this time might have been a critical step toward the modern state of our planet, and that this billion might not have been so boring after all.  

In the news: oldest bats, sauropod skulls, placoderm mouths, and feather-eating beetles.

Time markers: Intro & Announcements: 00:00:00 News: 00:05:45 Main discussion, Part 1: 00:39:00 Main discussion, Part 2: 01:08:15 Patron question: 01:40:30

Listen to us on I Know Dino! https://iknowdino.com/sinotyrannus-episode-437/

Will was a guest on Sprites of Life! https://open.spotify.com/episode/7KmiNQcKWgpT6Nn0FRrMMp

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast

Follow this link for a 30-day free trial to Audible! www.audibletrial.com/CommonDescent

Or make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp

Find merch at the Common Descent Store! http://zazzle.com/common_descent

Join the Common Descent Discord server! https://discord.gg/CwPBxdh9Ev

Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: @commondescentpodcast YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-04-30
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Patron Mini-Episode Compilation #3

As you might know by now, our high-level supporters on Patreon get to request a topic for their own special mini-episode! Every now and then, we collect the most recent of these and put them together into a compilation for everyone to hear. This is our third one!

A huge thanks as always to our Patrons for their kind contributions to our education efforts.

00:00:00 Intro 00:02:15 Stegosaurs for Sean 00:16:30 Tarantulas for Rebecca 00:35:00 Dilophosaurus for Hobart 00:52:15 Turtles for Quags 01:13:00 Whales for Thea 01:37:45 Parasaurolophus for Krzysztof

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast

Find us at commondescentpodcast.com

Follow this link for a 30-day free trial to Audible! www.audibletrial.com/CommonDescent

Or make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp

Find merch at the Common Descent Store! http://zazzle.com/common_descent

Join the Common Descent Discord server! https://discord.gg/CwPBxdh9Ev

Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: @commondescentpodcast YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-04-25
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Episode 163 - Claws

Check the fingers and toes of your favorite vertebrate animals and you?re likely to find claws or something similar at the ends. These digit-caps come in a variety of shapes ? claws, nails, even hooves ? for a variety of functions. In this episode, we discuss the close relationship between claw form and function, how we study claws in the fossil record, and the intriguing questions of how claws came to be as we know them today.

In the news: swimming temnospondyls, ants and plants, Troodon eggs, and cooked snails.

Time markers: Intro & Announcements: 00:00:00 News: 00:05:30 Main discussion, Part 1: 00:38:15 Main discussion, Part 2: 01:17:45 Patron question: 01:45:45

Listen to us on I Know Dino! https://iknowdino.com/sinotyrannus-episode-437/

Will was a guest on Sprites of Life! https://open.spotify.com/episode/7KmiNQcKWgpT6Nn0FRrMMp

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast

Follow this link for a 30-day free trial to Audible! www.audibletrial.com/CommonDescent

Or make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp

Find merch at the Common Descent Store! http://zazzle.com/common_descent

Join the Common Descent Discord server! https://discord.gg/CwPBxdh9Ev

Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: @commondescentpodcast YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-04-16
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Episode 162 ? Caecilians

You?re probably familiar with frogs and salamanders, but there is a third group of modern amphibians, the strangest of them all: the worm-like caecilians. In this episode, we?ll explore the many bizarre anatomical features of caecilians, from their tentacled faces to their abrupt hind ends. Then we?ll explore the entire caecilian fossil record (it won?t take long) and tackle the much-discussed mystery of how this fascinating lineage of amphibians got started.

In the news: weird marsupial eyes, long dinosaur necks, and kangaroo rats. Also a retraction!

Time markers: Intro & Announcements: 00:00:00 News: 00:05:00 Main discussion, Part 1: 00:43:30 Main discussion, Part 2: 01:22:30 Patron question: 01:59:30

HUGE THANKS to our News guests, Sabrina and Garret! Check out I Know Dino: https://iknowdino.com/ And they have a Patreon! https://www.patreon.com/iknowdino

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast

Follow this link for a 30-day free trial to Audible! www.audibletrial.com/CommonDescent

Or make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp

Find merch at the Common Descent Store! http://zazzle.com/common_descent

Join the Common Descent Discord server! https://discord.gg/CwPBxdh9Ev

Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: @commondescentpodcast YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-04-02
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Episode 161 - Sleep

We spend a huge portion of our lives sleeping. For us and other animals, it?s clearly a very important behavior. And yet, despite how familiar and commonplace it is, there?s plenty we still don?t understand about sleep: its origins, evolution, and even how to define it in the first place. In this episode, we explore some of the remarkable variation in animal sleeping habits, we discuss some of the ways we study and understand sleep, and we touch upon the crucial ? and much debated ? question of what sleep even does for us anyway.

In the news: early monotremes, chunky dunk, Permian pollinators, and parasitic ant mutations.

Time markers: Intro & Announcements: 00:00:00 News: 00:05:00 Main discussion, Part 1: 00:40:00 Main discussion, Part 2: 01:20:30 Patron question: 02:16:00

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast

Follow this link for a 30-day free trial to Audible! www.audibletrial.com/CommonDescent

Or make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp

Find merch at the Common Descent Store! http://zazzle.com/common_descent

Join the Common Descent Discord server! https://discord.gg/CwPBxdh9Ev

Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: @commondescentpodcast YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-03-19
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Episode 160 - The Messel Pit

Once, it was a volcanic crater. Then, it was a lake, perhaps equal parts lush and deadly. Much later, it was a mining site. And finally, today, it is a UNESCO World Heritage Site and one of the most famous and heavily studied fossil sites in the world. In this episode, we discuss the history and formation of the Messel Pit, and we ooh and aah over a small sampling of the many thousands of incredible fossils that have been found there.

In the news: lacewing larvae, folding leaves, dinosaur growth, and ankylosaur sounds.

Time markers: Intro & Announcements: 00:00:00 News: 00:06:00 Main discussion, Part 1: 00:36:00 Main discussion, Part 2: 01:00:00 Patron question: 01:40:30

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast

Follow this link for a 30-day free trial to Audible! www.audibletrial.com/CommonDescent

Or make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp

Find merch at the Common Descent Store! http://zazzle.com/common_descent

Join the Common Descent Discord server! https://discord.gg/CwPBxdh9Ev

Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: @commondescentpodcast YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-03-05
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Episode 159 - Giraffes

Giraffes are so famous and familiar to most of us that it can be easy to forget how utterly strange they are. This episode, we explore modern giraffes, their living cousins (okapis!), and their ancient relatives to understand how these monumental mammals came to be how they are. Along the way, we?ll meet a whole variety of wacky-horned fossil species, and we?ll tackle the questions of how and why the giraffe got its long neck.

In the news: dinosaur feet, marine crocs, hunted giant elephants, and bird egg evolution.

Time markers: Intro & Announcements: 00:00:00 News: 00:03:30 Main discussion, Part 1: 00:40:00 Main discussion, Part 2: 01:26:30 Patron question: 02:00:00

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast

Follow this link for a 30-day free trial to Audible! www.audibletrial.com/CommonDescent

Or make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp

Find merch at the Common Descent Store! http://zazzle.com/common_descent

Join the Common Descent Discord server! https://discord.gg/CwPBxdh9Ev

Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: @commondescentpodcast YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-02-19
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Episode 158 ? Charles R. Knight

Happy Darwin Day!

You?ve seen his artwork. And if you somehow haven?t, you?ve seen lots of art inspired by his artwork. Charles R. Knight might be the most influential paleoartist of all time, inspiring a century?s worth of artists, scientists, and ancient-animal-enthusiasts around the world with his skillful and scientifically-informed works. In this episode, we explore who Knight was, how he became a renowned paleoartist, and his extraordinary role in ushering in the modern world of paleontology.

In the news: Arctic primate-cousins, oldest caecilians, diving bird evolution, and Jehol bird preservation.

Time markers: Intro & Announcements: 00:00:00 News: 00:05:00 Main discussion, Part 1: 00:39:00 Main discussion, Part 2: 01:05:00 Patron question: 01:46:00

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

Check out Discovering Us from the Leakey Foundation: https://leakeyfoundation.org/discovering-us/

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast

Follow this link for a 30-day free trial to Audible! www.audibletrial.com/CommonDescent

Or make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp

Find merch at the Common Descent Store! http://zazzle.com/common_descent

Join the Common Descent Discord server! https://discord.gg/CwPBxdh9Ev

Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: @commondescentpodcast YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-02-05
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Episode 157 - Bioluminescence and Biofluorescence

Glowing organisms might seem like something out of science fiction, but not only do they exist here on Earth, they are incredibly common. Some species glow when exposed to certain kinds of light, and others produce their very own light in the darkest habitats on the planet. This episode, we explore glowing life: how they do it, what they use it for, and what we can tell about how this remarkable ability came to be.

In the news: painted turtles, dinosaur herbivores, human brains, and insect ears.

Time markers: Intro & Announcements: 00:00:00 News: 00:04:30 Main discussion, Part 1: 00:37:00 Main discussion, Part 2: 01:29:00 Patron question: 02:10:30

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast 

Follow this link for a 30-day free trial to Audible! www.audibletrial.com/CommonDescent

Or make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp

Find merch at the Common Descent Store! http://zazzle.com/common_descent

Join the Common Descent Discord server! https://discord.gg/CwPBxdh9Ev

Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: @commondescentpodcast YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-01-22
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Episode 156 - Eurypterids (Sea Scorpions)

The Paleozoic Era was home to many strange and fascinating extinct groups, and among the most eye-catching of these were the eurypterids. Colloquially called ?sea scorpions,? these carnivorous aquatic arthropods came in many forms for many habitats and are now known from many amazing fossils. In this episode, we discuss what makes eurypterids distinct from similar organisms, what we know about their lifestyles, and the many ways they continue to surprise and confuse us.

In the news: Brazilian crocs, injured cats, breeding ichthyosaurs, and mammal-munching dinos.

Time markers: Intro & Announcements: 00:00:00 News: 00:05:30 Main discussion, Part 1: 00:40:00 Main discussion, Part 2: 01:03:30 Patron question: 01:48:30

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast 

Follow this link for a 30-day free trial to Audible! www.audibletrial.com/CommonDescent

Or make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp

Find merch at the Common Descent Store! http://zazzle.com/common_descent

Join the Common Descent Discord server! https://discord.gg/CwPBxdh9Ev

Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: @commondescentpodcast YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2023-01-08
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End of the Year Q&A 2022

Happy New Year!

It?s been an exciting and eventful year for the podcast, and we?re glad you?ve been along for the ride! As usual, this is our annual Q&A where we answer the many, many questions our listeners submitted ? the scientific, the silly, and the personal.

Thanks as always to all of our listeners, our Patrons, our special guests, and to everyone who supports the podcast in ways big and small.

See you next year.

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast 

Follow this link for a 30-day free trial to Audible! www.audibletrial.com/CommonDescent

Or make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp

Find merch at the Common Descent Store! http://zazzle.com/common_descent

Join the Common Descent Discord server! https://discord.gg/CwPBxdh9Ev

Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: @commondescentpodcast YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

2022-12-31
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Episode 155 - Gymnosperms

It?s a great time of year to talk about conifers! Also their cousins: cycads, ginkgos, and others! Gymnosperms don?t get nearly as much love and attention as their flowering counterparts, the inescapable angiosperms, but they nonetheless have their own fascinating history going all the way back to some of the earliest forests on Earth. This episode, we?re joined once again by our favorite paleobotanist Dr. Aly Baumgartner to discuss what makes gymnosperms unique, what has made them so successful for hundreds of millions of years, and how these incredible plants have changed the world.

In the news: fossil-finding robots, super-old DNA, ankylosaur clubs, and snake sex organs.

Time markers: Intro & Announcements: 00:00:00 News: 00:06:45 Main discussion, Part 1: 00:41:30 Main discussion, Part 2: 01:38:30 Patron question: 02:36:30

Check out our blog for bonus info and pictures: http://commondescentpodcast.com/

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast 

Follow this link for a 30-day free trial to Audible! www.audibletrial.com/CommonDescent

Or make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp

Find merch at the Common Descent Store! http://zazzle.com/common_descent

Join the Common Descent Discord server! https://discord.gg/CwPBxdh9Ev

Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: @commondescentpodcast YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2022-12-25
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Episode 154 - Live Birth

Viviparity is the reproductive style where embryos develop inside a parent?s body instead of inside an egg the parent lays. It?s a very familiar habit to us placental mammals, but it?s also an extremely widespread and diverse feature of life. Seriously, it?s ridiculous just how many times viviparity has evolved and just how many different ways species have found to be viviparous. In this episode we?ll answer such questions as: How and why does viviparity evolve? What features vary from one viviparous group to the next? And how do we identify viviparous animals in the fossil record?

In the news: army ants, oldest lizards, beaver families, and swimming dinosaurs.

Time markers: Intro & Announcements: 00:00:00 News: 00:04:30 Main discussion, Part 1: 00:33:30 Main discussion, Part 2: 01:13:30 Patron question: 01:46:30

Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/

The 2022 End of the Year Q&A Form is LIVE! Submit your question now! https://forms.gle/GTgew75GmVxAKejt6

Follow this link for a 30-day free trial to Audible! www.audibletrial.com/CommonDescent

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast 

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Find merch at the Common Descent Store! http://zazzle.com/common_descent

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Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: @commondescentpodcast YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2022-12-11
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Episode 153 - Armadillos

Built-in body armor is common among reptiles and rare among mammals, but armadillos are the major exception. Equipped with a full set of segmented armor over their heads, backs, and tails, armadillos have been waddling around well-protected for tens of millions of years, and their ancient relatives include some of the most famous and preposterous of extinct mammals. This episode, we discuss the unique features and fascinating history of armadillos, glyptodonts, and their other ancient cousins.

In the news: roots and extinction, new croc-like reptiles, early cooking, and giant turtles.

Time markers: Intro & Announcements: 00:00:00 News: 00:04:00 Main discussion, Part 1: 00:31:30 Main discussion, Part 2: 01:05:30 Patron question: 01:39:30

Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/

The 2022 End of the Year Q&A Form is LIVE! Submit your question now! https://forms.gle/GTgew75GmVxAKejt6

Follow this link for a 30-day free trial to Audible! www.audibletrial.com/CommonDescent

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast 

Or make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp

Find merch at the Common Descent Store! http://zazzle.com/common_descent

Join the Common Descent Discord server! https://discord.gg/CwPBxdh9Ev

Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: @commondescentpodcast YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2022-11-27
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Episode 152 - The Jehol Biota

You might have noticed that over the last few decades, a lot of really exciting and famous fossil discoveries have been coming out of China. If you pay close attention, you might even catch that many of them are coming from the same place: the incredible fossil assemblages of the Jehol Biota. We?ve mentioned Jehol fossils many times on the podcast, but in this episode, we focus on the big picture: where do these fossils come from, why are they so incredibly well-preserved, and what are just some of the fascinating research questions we can answer by examining these amazing fossils?

In the news: bird evolution, dinosaur growth patterns, mammal speciation rates, and glowing scallops.

Time markers: Intro & Announcements: 00:00:00 News: 00:08:00 Main discussion, Part 1: 00:48:30 Main discussion, Part 2: 01:15:30 Patron question: 01:51:30

Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/

The 2022 End of the Year Q&A Form is LIVE! Submit your question now! https://forms.gle/GTgew75GmVxAKejt6

Follow this link for a 30-day free trial to Audible! www.audibletrial.com/CommonDescent

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast 

Or make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp

Find merch at the Common Descent Store! http://zazzle.com/common_descent

Join the Common Descent Discord server! https://discord.gg/CwPBxdh9Ev

Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: @commondescentpodcast YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2022-11-13
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Episode 151 - Tails

Look at the various animals on Earth ? or rather, look just behind them ? and you?ll see a vast variety of tails! Tails and tail-like structures are often simple extensions of the body, and yet they?ve been adapted and modified into many shapes with many functions, and because they?re often so important to an animal?s lifestyle, they can be especially useful for paleontologists trying to understand ancient animals. In this episode, we?ll discuss definitions, diversity, functions, and fossils of tails.

In the news: drought fossils, early fish jaws, early fish fins, and paleontology video games.

Time markers: Intro & Announcements: 00:00:00 News: 00:04:00 Main discussion, Part 1: 00:33:00 Main discussion, Part 2: 01:18:30 Patron question: 01:53:30

Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/

Follow this link for a 30-day free trial to Audible! www.audibletrial.com/CommonDescent

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast 

Or make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp

Find merch at the Common Descent Store! http://zazzle.com/common_descent

Join the Common Descent Discord server! https://discord.gg/CwPBxdh9Ev

Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: @commondescentpodcast YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

2022-10-30
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Spook-E - Mimics

Welcome ... to Spookulative Evolution.

October is here, and that means it?s time for Spook-E! Each episode throughout this month, we?re choosing a monster and discussing how it ? or something like it ? might evolve under the rules of evolution and natural selection, pulling inspiration from organisms of the real world. This year?s theme: monsters of Dungeons and Dragons.

This episode, we delve into a paranoia-inducing scourge of dungeons. What hypothetical natural scenario might cultivate a shape-shifting ambush hunter that disguises itself as inanimate objects? Our creatures to create this time: Mimics.

Join the Common Descent Discord server for more Spook-E discussion! https://discord.gg/CwPBxdh9Ev

And share your Spook-E musings on social media with the hashtag #SpookE

Check out our blog for podcast info, fan art, and more! http://commondescentpodcast.wordpress.com/

Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast 

Or make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp Find merch at the Common Descent Store! http://zazzle.com/common_descent Subscribe for a free 30-day trial at Audible! www.audibletrial.com/CommonDescent

Follow and Support us on: Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: @commondescentpodcast YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/

You can email us at commondescentpodcast(at)gmail.com Or send us physical mail at: The Common Descent Podcast 1735 W State of Franklin Rd. Ste 5 #165 Johnson City, TN 37604

The Intro and Outro music is ?On the Origin of Species? by Protodome. More music like this at http://ocremix.org.

2022-10-29
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