Evolution (Video)

As humans have evolved, so has our ability to drastically alter the planet we call home. In this collection of talks from the CARTA symposium, "Humans: The Planet-Altering Apes" you will learn about specific examples on how humans have changed Earth and what can be done to prevent its cataclysmic demise. David Holway addresses the challenges of emerging invasive species in our ecosystem. Oliver Ryder discusses the accelerated rate of loss of species due to human activities. Patricia Hunt talks about how human made chemicals and pollutants are impacting global fertility rates. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 38207]

As humans have evolved, so has our ability to drastically alter the planet we call home. In this collection of talks from the CARTA symposium, "Humans: The Planet-Altering Apes" you will learn about specific examples on how humans have changed Earth and what can be done to prevent its cataclysmic demise. Rob Knight will talk about how all microbiomes that have been studies are impacted by human activity. Alice Goramn discusses how accumulating space debris surrounding our planet that may prevent us from leaving the Earth in the future. Asher Rosinger addresses the global water challenges that humans may face as climate change begins to affect water supplies. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 38206]

As humans have evolved, so has our ability to drastically alter the planet we call home. In this collection of talks from the CARTA symposium, "Humans: The Planet-Altering Apes" you will learn about specific examples on how humans have changed Earth and what can be done to prevent its cataclysmic demise. Walter Willett will discuss how climate change is having devastating effects that will undermine our ability to feed the world?s growing population. Jessica Thompson talks about humans transformed the environment and the damage it has done to our ecosystem. Finally, David Tilman addresses the global alteration of Earth's nitrogen cycle, and what it means for u as a species moving forward. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 38205]

This CARTA public symposia addresses specific examples of how humans have drastically altered the planet. Acknowledged experts discuss clearly defined global-scale negative impacts on planet earth, our life support system (other than climate change, population growth and infectious diseases, which are well-known). Each talk succinctly describes a specific impact, the role that our species has played, and concludes with ongoing or potential approaches to mitigation. In the process, we come full circle to Anthropogeny, asking how a single species could have evolved the ability to so drastically alter the entire planet. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 38009]

Why does history keep repeating itself? And what can cats tell us about this? Ashley Poust, Ph.D., is a paleontology researcher at the San Diego Natural History Museum. He focuses on vertebrates and evolutionary biology and explains how the study of extinct cats, like the sabertooth, can help us reconstruct ancient environments, gain a better understanding of our origins, see deeper into life's processes, and at the highest level, have a new view of the world. Series: "Triton Talks" [Science] [Show ID: 38073]

Through the Earth Microbiome Program and complementary efforts, we have sampled a broad range of microbiomes from across the planet. All microbiomes that have been studied are impacted by human activity ? the effects of industrialization on the human microbiome are best characterized, but capture of animals in zoos, domestication, modification of soils through agricultural practices, and modification of freshwater and marine microbiomes have also all been well characterized. Indeed, the pervasive role of environmental microbiomes in biogeochemical cycles necessary to sustain life led to a position paper entitled "Scientists? warning to humanity: microorganisms and climate change?, the title of which speaks for itself. However, there is hope. Efforts such as the Microbiota Vault will be especially important in this respect, but also new monitoring and modeling approaches will help us understand where to look globally for the best specimens and microbes to preserve. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37909]

In 1957, the USSR launched Sputnik 1, the first human object to leave Earth. In the 65 years since then the region of Earth orbit has become filled with satellites and space junk. The proliferation of debris has led to the prediction of Kessler Syndrome, a state where a never-ending cascade of collisions between orbital objects renders parts of space unusable for human purposes. However, there are many different ways to look at the space junk surrounding Earth. For example, it is also an archaeological record of humanity?s first steps into outer space, a cultural landscape created by the combined effects of natural and cultural processes, and a technological signature of the same kind that SETI (Search for Extraterrestrial Intelligence) researchers are looking for around exoplanets in other solar systems. It?s unclear when or whether the tipping point into Kessler Syndrome might be reached, but if humanity is confined to Earth in the future, what will this mean? Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37913]

We are experiencing an accelerated rate of loss of species due to human activities. This anthropogenic phenomenon extends beyond extinction. It encompasses an expanded loss of biodiversity as the genetic diversity of species diminish, reducing gene pools to ?gene puddles.? We know details of species extinctions events from the fossil record, historical record, and from ancient DNA studies, and that historical processes shape extinction risk. Habitat loss and changing eco-environmental conditions, competition, and other factors produce genomic impacts, also influencing extinction risk. The legacy of past events impacts resiliency of species in the current environment in interpretable ways. Demographic trajectories reveal vulnerability to extinction. Remarkable advances in genomics technologies portend a deeper understanding of the evolution of life and the vulnerability of extant species to changes now taking place through human agency. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37906]

Humans now annually add more biologically available nitrogen to the Earth?s land surfaces than do all natural processes. For 3 billion years, available nitrogen had been the major limiting currency for life on Earth. The recent human disruption of the global nitrogen cycle is causing major environmental harm, including water and air pollution, marine dead zones, 10% of global greenhouse gas emissions, and species extinctions. Three major ways to solve this nitrogen problem are: (1) much more efficient global use of nitrogen fertilizers; (2) shifts to lower-meat and healthier diets; and (3) halting the conversion of food crops into biofuels, such as US corn ethanol used for transport. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37910]

Amazing new technologies in developmental biology and genetics research are allowing scientists to begin to answer long standing questions such as ? how does a single fertilized egg cell transform into a complex animal? Why does the embryo of a marine organism like a sea slug develop differently from that of a sea urchin? Join Scripps Developmental Biologist Deirdre Lyons as she describes how she and her colleagues are pushing the limits of our knowledge to understand these intriguing questions and the long history and diversity of life on our planet. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Science] [Show ID: 37915]

We are losing species much more rapidly now than in the last two million years! At this pace, we may lose a large proportion of vertebrates, including mammals, birds, reptiles, amphibians, and fishes, in the next two to three decades. Modern extinctions caused by human activities are higher than the normal or natural extinction rate which tells us that we may be causing a mass extinction. In the history of life on Earth, there have been five mass extinctions ? episodes where large numbers of species became extinct in a short period of time. All mass extinctions have been caused by natural catastrophes, such as the impact of a meteorite. We are the only species that has the capability to save all endangered animals. Paradoxically, saving them is the only way to save humanity. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37904]

The introduction of species into new environments has occurred throughout human history. While most introductions fail and most of those few that establish remain environmentally innocuous, a notable minority wildly proliferates in their new ranges. These invaders disrupt ecosystems and burden economies. Environmental impacts associated with invasions are hard to predict and vary in space and time but include ecosystem-level disruptions, species extinctions, and the homogenization of biodiversity. Economic costs, while challenging to quantify, are enormous and growing. Given that established invaders are difficult to eradicate, let alone manage, stopping invasions before they start remains the most effective strategy to limit further costs resulting from invasions. Challenges to implementing this approach include regulating trade and coordinating rapid governmental responses to emerging threats. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37905]

Beginning with Homo erectus at least a million years ago, hominins have used fire to engineer the world around them. The earliest uses of fire surely included cooking, changing the energy yields of foods. Such innovations altered the course of our evolution, facilitating the evolution of species that could adapt quickly using tools and social ingenuity. Within the last 200,000 years, hominins also used fire to change the material properties of stone, pigments, sap, and wood. While these changes represent a fundamental shift in the role of humans as dominant shapers of their environments through years of evolution and innovation, ecosystems adjusted as early humans remained embedded within them. However, humans are not now simply shifting to another sustainable balance - we are pushing environmental thresholds across one tipping point after the next. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37907]

This CARTA public symposia addresses specific examples of how humans have drastically altered the planet. Acknowledged experts will discuss clearly defined global-scale negative impacts on planet earth, our life support system (other than climate change, population growth and infectious diseases, which are well-known). Each talk succinctly describes a specific impact, the role that our species has played, and concludes with ongoing or potential approaches to mitigation. In the process, we are coming full circle to Anthropogeny, asking how a single species could evolve the ability to so drastically alter the entire planet. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 38008]

Humans have adapted to meet their water needs across disparate environments over time using behavioral adaptations. Yet, as temperatures rise and freshwater sources become depleted, it is critical to understand 1) how populations modify their environments to meet their water needs, and 2) the consequences of these anthropogenic - or human caused changes - on the environment and further on human health. This talk will provide an overview of different global water challenges and focus on a couple of case studies to highlight how development projects in remote areas that provide easier access to water, which may be high in salt or other contaminants, can unintentionally worsen health outcomes and hasten water depletion. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37908]

Human-made chemicals with the unexpected ability to interfere with our body?s endocrine system have become prominent contaminants in daily life. Because the hormones produced by our endocrine system create complex signaling networks that control our growth, maturation, fertility, immunity, behavior, and sleep, these endocrine disrupting chemicals, or EDCs, can exert powerful biological effects. Declines in human fertility evidenced by falling sperm counts and increases in the incidence of infertility raise concern that daily exposure to EDC contaminants already is impacting human fertility. By design, all species are responsive to their environment. In humans, this responsiveness means that changes in our environment can affect the production of eggs and sperm, the growth and development of the fetus, and adult susceptibility to disease. Thus, in a 21st century world characterized by environmental crises, EDCs represent a planetary health problem with the potential to affect future generations. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37912]

The world is facing a health crisis due to increasing rates of obesity and diabetes, and the consequences of this pandemic will accumulate over the coming decades. Simultaneously, climate change is accelerating and is already having devastating effects that will undermine our ability to feed the world?s growing population. In turn, our food systems contribute importantly to greenhouse gas emissions, water and land use, and multiple forms of pollution. Thus, a solution to feeding what will be about 10 billion people by 2050 diets that are both healthy and environmentally sustainable presents an opportunity to mitigate many global challenges. The EAT-Lancet commission addressed this challenge by defining healthy diets quantitatively, determining whether these can be produced within planetary boundaries for greenhouse gas emissions and other environmental factors, and identifying strategies to achieve these goals. Any solution must assume that we rapidly shift from fossil fuels to green energy. The commission found that global adoption of a flexitarian dietary pattern that could include up to about two servings per day of animal sourced foods, together with improvements in agricultural practices and reductions in food waste, would have major benefits for human health and allow us to stay within planetary boundaries. Achieving this will require the engagement of governments at all levels, civil society, and individuals. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Health and Medicine] [Humanities] [Science] [Show ID: 37911]

This CARTA public symposia focuses on the long and short-term impact of humans on the planet that we inhabit, and the consequences for the future of our species. This also gives us the opportunity to celebrate the memory of the late Paul Crutzen, who coined the term ?Anthropocene.? It is relevant to ask how a single species evolved the capacity to completely alter the surface of an entire planet and dominate its governing environmental and ecological processes. This symposium brings together experts regarding human impact on the planet and also addresses the current and future implications for our species. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37937]

This CARTA public symposia focuses on the long and short-term impact of humans on the planet that we inhabit, and the consequences for the future of our species. This also gives us the opportunity to celebrate the memory of the late Paul Crutzen, who coined the term ?Anthropocene.? It is relevant to ask how a single species evolved the capacity to completely alter the surface of an entire planet and dominate its governing environmental and ecological processes. This symposium brings together experts regarding human impact on the planet and also address the current and future implications for our species. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37875]

Speakers Leslie Aiello, Michael Purugganan and Vanessa Ezenwa discuss humanity's past, present and future of the Anthropocene. Aiello speaks on how the human capacity to change the planet is not something new, but is rooted in our deep evolutionary past. One of the hallmarks of humans is our large brain size, which began to expand about 2 million years ago. Purugganan discusses how domesticated species are an interesting group of organisms that have co-evolved with Homo sapiens, and have been important in human survival and fitness. Ezenwa explores the idea that interactions between climate change and infectious diseases can increase disease prevalence in human and animal populations, but disease, in turn, may exacerbate climate change. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37936]

Speakers Mark Moffett, Charles Kennel and Martin Rees discuss humanity's past, present and future of the Anthropocene. Moffett examines the effects of the most aggressive ants on the environment, arguing that certain invasive species resemble humans in their capacity for global conquest and environmental destructiveness. Kennel speaks about the connections between past and present human exploitation of the environment, the coming crisis of the Anthropocene and what we humans can do to alleviate the crisis. Rees explores potential utopian and dystopian futures for humans on Earth. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37934]

Speakers V. Ramanathan, Nancy Knowlton and Jonah Western discuss humanity's past, present and future of the Anthropocene. Veerabhadran Ramanathan has had the privilege and pleasure of collaborating with Paul Crutzen for more than 40 years. Crutzen is one of the most creative, innovative and original geo-scientists of his generation. Nancy Knowlton speaks on how the ocean is enormous, indeed so large that for centuries we assumed there was nothing we could do to substantially harm it. Unfortunately, we now know that this is not true. David (Jonah) Western emphasizes how conservation is common to all societies which learned to live within ecosystem limits. If we use our unique capacity for cooperation and planning, there is hope for combating global warming and sustaining the diversity of life globally. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37935]

The ocean is enormous, indeed so large that for centuries we assumed that there was nothing we could do to substantially harm it. Unfortunately, we now know that this is not true. We are having success on some fronts, such as saving species from extinction, protecting ocean waters, fishing more sustainably, and restoring damaged ecosystems by replanting critical species and reducing pollution. Even actions on land, such as removing dams from rivers and rats from islands, can make an important difference to marine life. Of course, we still need to do much more, and do it faster. In the future, we can turn to new tools drawn from the natural and social sciences. Big data and genetic interventions have a role to play, as do ocean-based renewable energy sources and new financing schemes. Perhaps most important is the growing recognition that success depends on empowering local communities in efforts to create a healthier ocean. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37775]

The human capacity to change the planet is not something new, but is rooted in our deep evolutionary past. One of the hallmarks of humans is our large brain size, which began to expand about 2 million years ago. This expansion did not come without consequences, and two are particularly important. The first is the additional energy requirements needed to fuel this larger brain size together with the concomitant life history factors such as shorter inter birth intervals, more dependent offspring and longer periods of growth and development, and longer lifespans. The second is the solution to these energy requirements that involve cooperative breeding and the development of the high risk/high return hunting and gathering foraging strategies. From this foundation we trace the increasing capacity of humans to extract more energy from the environment through the development of a reliance on fire, the agricultural revolution leading to the industrial revolution and modern times. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37770]

Domesticated species of crops are an interesting group of organisms that have co-evolved with Homo sapiens, and have been important in human survival and fitness. We trace the origin and spread of these domesticated crop species over the last 12,000 years, discussing both their impacts on human society as well as to the climate and human evolution. We will also present the challenges in modern agriculture and food security. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37771]

Veerabhadran Ramanathan has had the privilege and pleasure of collaborating with Paul Crutzen for more than 40 years. During the year 2000, when he announced to the world about his Anthropocene concept, Crutzen and Ramanathan were in the midst of a major field study on Atmospheric Clouds over the Indian Ocean. Crutzen is one of the most creative, innovative and original geo-scientists of his generation. Ramanathan describes the Anthropocene using the lens of a climate scientist. He concludes with speculation about how and when we will transition from the current adolescent age of the Anthropocene subject to multiple assaults on the environment to a mature, sustainable and safe Anthropocene. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Science] [Show ID: 37769]

Conservation is common to all societies which learned to live within ecosystem limits. In breaking the evolutionary and biological straight-jackets constricting other species, we became the ultimate multi-niche free-ranging species. Our rise to global conquest and ecological emancipation from nature through domestication and manufacturing expanded conservation for survival to saving whales, elephants, the Acropolis and Mona Lisa. The universal rules for overcoming a tragedy of the commons locally offers hope for combating global warming and sustaining the diversity of life globally?if we use our unique capacity for cooperation and planning. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37776]

Climate change is one of the hallmarks of the Anthropocene. Rising global temperatures are having profound effects on ecosystems and the organisms that inhabit them, including disease-causing organisms such as viruses, bacteria, and parasitic worms. However, much less is known about the potential for infectious agents to contribute to changes in climate. Many infectious agents have the potential to affect greenhouse gas emissions via effects on their hosts. In her talk, Vanessa Ezenwa explores the idea that interactions between climate change and infectious diseases are not solely unidirectional, specifically, that climate change can increase disease prevalence in human and animal populations, but disease, in turn, may exacerbate climate change. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Health and Medicine] [Humanities] [Science] [Show ID: 37774]

This century is the first in Earth's history when the catastrophic threats to the entire planet can be induced by one species, humans. We have an ever-heavier collective footprint on the planet. We?re empowered by ever more powerful technologies that can be hugely beneficial, but which if misapplied could trigger calamitous setbacks to civilization. Such events could be global: we?re so interconnected that no continent would be unscathed. It?s an ethical indictment of humanity that the gap between the actual state of the world, and the way it could be, is widening rather than narrowing. COVID-19 has been a wake-up call. It has shown that our increasingly interconnected civilization is vulnerable - but also that well-directed science can be our salvation. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37777]

Connections between past and present human exploitation of the environment, the coming crisis of the Anthropocene and what we humans can do to alleviate the crisis. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37773]

This talk considers the effects of the most aggressive ants on the environment, arguing that certain invasive species resemble humans in their capacity for global conquest and environmental destructiveness.  Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37772]

Dr. Todd Oakley, evolutionary biologist and professor in the Department of Ecology, Evolution, and Marine Biology at UC Santa Barbara, discusses his research on the evolutionary origins of complex features, like eyes, bioluminescence, and nervous systems. Series: "GRIT Talks" [Science] [Show ID: 37868]

UC San Diego professor Carol Marchetto discusses how a comparative gene expression analysis of human and non-human primates revealed differences in the regulation of a class of transposable elements LINE1 retrotransposons between species. University of Southern California professor Joseph Hacia discusses studies profiling phytanic acid levels in red blood cells obtained from humans and captive non-human primates all on low phytanic acid diets. Emory University professor James Rilling discusses the difference of arcuate fasciculus between human and non-human primate brains and how the specialization of speech has helped humans evolve. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37527]

This symposium addresses several important distinctly human characteristics that range from molecules, to metabolism, anatomy, disease, and behavior. Goals include transdisciplinary interactions, improved self-understanding, promotion of ethically sound studies to explain known differences, and the generation of new, potentially unexplored, insights on uniquely-human specializations. Given the interest in understanding our evolution, this symposium will also help to organize how and in what sequence distinctly human physical, mental, social, and cultural features evolved. Such understanding may help explain the origin of our species and how it came to now directly shape the planet, giving rise to the Anthropocene (a proposed geological epoch distinguished by human influence on climate and the environment). Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37534]

Identifying cellular and molecular differences between human and non-human primates is essential to the basic understanding of the evolution and diversity of our own species. While preserved tissues are the main source of comparative studies between humans, chimpanzees and bonboos, the samples do not accurately represent the traits of live cell behavior and cannot be genetically manipulated. UC San Diego professor Carol Marchetto discusses how a comparative gene expression analysis of human and non-human primates revealed differences in the regulation of a class of transposable elements (Long Interspersed Nuclear Element 1 or LINE1 retrotransposons) between species. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37377]

Unlike our closest primate relatives, chimpanzees and bonobos, humans form strong intergroup ties which can mitigate coalitionary aggression and make peace possible. However, such bonds can also be used to build larger alliances that take such conflicts to a new level of magnitude, supported by cultural and linguistic proficiencies. Arizona State University and University of Utah professor Polly Wiessner addresses intergroup ties between humans, chimpanzees and bonobos, explores some of the possible evolutionary developments that contributed to the human disposition to form mutually supportive external bonds, and then discusses the impact of social ties on coalitionary action. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37383]

Emory University professor Dietrich Stout discusses an evolutionarily motivated definition of technology that highlights three key features: material production, social collaboration, and cultural reproduction; UC San Diego professor Pascal Gagneux discusses how recent comparative genome studies have revealed that this polymorphic system is ancient and shared between humans and non-human primates, this despite the fact that none of the great ape species carries all four ABO blood types; and University of Utah professor James O?Connell discusses food sharing, evaluates one hypothesis that focuses on males acquiring big game meat and marrow to provide for mates and offspring. The other hypothesis surrounds how certain kinds of savanna plant food set up the forager interdependence which propelled all aspects of life history change. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37528]

Arizona State University and University of Utah professor Polly Wiessner addresses intergroup ties between humans, chimpanzees and bonobos and explores some of the possible evolutionary developments that contributed to the human disposition to form mutually supportive external bonds, and then discusses the impact of social ties on coalitionary action; UC San Diego professor Rafael Nuñez discusses the comparative analysis of ?quantity? and ?number?, and the implications it has for debates about the origins of other human special capacities such as geometry, music, and art; and UC San Diego School of Medicine professor Nissi Varki discusses the incidence of carcinomas, including the rarity of occurrence of common human carcinomas in captive chimpanzees. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37529]

Technology is clearly central to human life and evolution but remains hard to define and study. Emory University professor Dietrich Stout discusses an evolutionarily motivated definition of technology that highlights three key features: material production, social collaboration, and cultural reproduction. This perspective has important implications for the way we conceptualize and study the origins and evolution of human technologies. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37385]

This symposium addresses several important distinctly human characteristics that range from molecules, to metabolism, anatomy, disease, and behavior. Goals include transdisciplinary interactions, improved self-understanding, promotion of ethically sound studies to explain known differences, and the generation of new, potentially unexplored, insights on uniquely-human specializations. Given the interest in understanding our evolution, this symposium will also help to organize how and in what sequence distinctly human physical, mental, social, and cultural features evolved. Such understanding may help explain the origin of our species and how it came to now directly shape the planet, giving rise to the Anthropocene (a proposed geological epoch distinguished by human influence on climate and the environment). Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37447]

Humans and many other species have biologically endowed abilities for discriminating ?quantities? to some degree (e.g., subitizing), but only humans, via the distinct capacity of ?symbolic reference? exhibit ?number? ? i.e., exact symbolic quantification. Language, with its symbolic properties although present in all human cultures, is a necessary condition for ?number? but it is not a sufficient condition for it. UC San Diego professor Rafael Nuñez discusses the comparative analysis of ?quantity? and ?number?, and the implications it has for debates about the origins of other human special capacities such as geometry, music, and art. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37386]

Sialic acid-recognizing immunoglobulin-type lectins (Siglecs) are a family of cell surface proteins prominently expressed on immune cells in mammals. Siglec-11 is an example of an inhibitory Siglec. It was the first protein in the brain found to be ?human-specific?: non-human primates express Siglec-11 in other tissues but not in the central nervous system. UC San Diego School of Medicine professor Ajit Varki discusses the importance of Siglec-11 and the paired receptor Siglec-16, and how they play significant roles in regulating inflammation, and have several uniquely human features including expression in brain. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37380]

Language is a human cognitive specialization, and as such, is expected to be supported by human neurological specializations. The arcuate fasciculus is a white matter fiber tract that connects Wernicke?s and Broca?s language areas in the human brain, and also connects the homologues of Wernicke?s and Broca?s areas in non-human primate brains. Emory University professor James Rilling discusses the difference of arcuate fasciculus between human and non-human primate brains and how the specialization of speech has helped humans evolve. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37381]

During embryogenesis, the three germ layers (endoderm, ectoderm, mesoderm) differentiate into epithelial and non-epithelial cells, which eventually form differentiated tissues and organs. Abundant data now indicates that we humans are very closely related to other hominids including chimpanzees, bonobos, gorillas, and orangutans, the so-called "great apes". UC San Diego School of Medicine professor Nissi Varki discusses the incidence of carcinomas, including the rarity of occurrence of common human carcinomas in captive chimpanzees. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37382]

Diet has played a major role in the evolution of human and non-human primate digestive systems. Phytanic acid is a potentially toxic branched chain fatty acid that can be acquired in humans by ingesting plant and/or animal products. Although it was established that humans cannot derive phytanic acid from chlorophyll and instead normally obtain it only from meat, dairy, and fish products, less was known about the capacity of non-human primates with proportionally larger hindguts to obtain phytanic acid from plant materials. University of Southern California professor Joseph Hacia discusses studies profiling phytanic acid levels in red blood cells obtained from humans and captive non-human primates all on low phytanic acid diets. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37379]

ABO Blood groups represent the first described human molecular polymorphism. The ABO gene encodes variants of a protein (a glycosyltransferase) that produces the short sugar chains on glycoproteins and glycolipids that define the A, B, or O antigens. These antigens are found on red blood cells, plasma glycoproteins, and other cell types in various tissues. Individual humans can have one of four blood types based on the two alleles inherited from both parents at the ABO locus: blood type A, B, AB, or O. UC San Diego professor Pascal Gagneux discusses how recent comparative genome studies have revealed that this polymorphic system is ancient and shared between humans and non-human primates, this despite the fact that none of the great ape species carries all four ABO blood types. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37378]

Humans are unusual in that we depend on shared foods, especially among families and friends and between potential mates. Food sharing occurs between healthy individuals and those that are infirm or elderly. We also differ from other great apes in our early ages at weaning, late ages at maturity, short birth intervals and survivorship decades past menopause. The emergence of these patterns was crucial to early human development. In light of observations among modern East African hunter-gatherers, University of Utah professor James O?Connell evaluates two alternatives. He discusses one hypothesis that focuses on males acquiring big game meat and marrow to provide for mates and offspring. The other hypothesis surrounds how certain kinds of savanna plant food set up the forager interdependence which propelled all aspects of life history change. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37384]

Discussion session about The Evolution of Human Physical Activity. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Science] [Show ID: 37188]

Human physical activities differ significantly from other species. How, when and why did these capabilities evolve? What adaptations underlie them? And how did the evolution of human physical activity affect other key human characteristics that have advanced our species? Herman Pontzer explores the evolution of metabolism, Grazyna Jasienska discusses different effects of activity on women's reproductive health and Ellen Breen explores an evolutionary pathway for high endurance activity. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Science] [Show ID: 37187]

Human physical activities differ significantly from other species. How, when and why did these capabilities evolve? What adaptations underlie them? And how did the evolution of human physical activity affect other key human characteristics that have advanced our species? Daniel Lieberman explores how running evolved and David Raichlen explains the effects of physical activity on the brain. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Science] [Show ID: 37185]