Screaming Marmots and the Sound of Fear

Why are some sounds more frightening than others? Are there evolutionary origins behind the things we find scary? And is there anything more blood-curdling than a full throated scream?

Becky Ripley and Emily Knight tune in to the sounds that send the shivers down our spines, via a frightened Marmot in the Rocky Mountains of Colorado, and a brand new kind of musical instrument known as the 'apprehension engine'. Beware listeners, you may be in for a fright....

Featuring professor Daniel Blumstein, Chair of the Department of Ecology at UCLA, and film score composer Mark Korven. Produced and presented by Emily Knight and Becky Ripley.