This is a story about your butt. It’s a story about how you got your butt, why you have your butt, and how your butt might be one of the most important and essential things for you being you, for being human.

In this episode from 2019, Reporter Heather Radke and Producer Matt Kielty talk to two researchers who followed the butt from our ancient beginnings through millions of years of evolution, all the way to today, out to a valley in Arizona, where our butts are put to the ultimate test.

Special thanks to Michelle Legro.

EPISODE CREDITS:

Reported by - Heather Radke and Matt KieltyProduced by - Matt Kieltywith help from - Simon Adler and Rachael CusickOriginal music and sound design contributed by - Jeremy BloomFact-checking by - Dorie Chevlen

EPISODE CITATIONS:

Books: Butts by Heather Radke

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Leadership support for Radiolab’s science programming is provided by the Gordon and Betty Moore Foundation, Science Sandbox, a Simons Foundation Initiative, and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation.

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