human anatomy

Once upon a time, there were no anuses. These ingenious organs allowed our primordial ancestors to grow bigger and more complex, but scientists still don’t understand how they evolved. And they’re still grasping at a mystery that literally surrounds it: Why is the human butt so big? For more go to http://vox.com/unexplainable It's a great place to sign up for our newsletter, view show transcripts, and read more about the topics on our show. Also email us! unexplainable@vox.com We read every email. Support Unexplainable by making a financial contribution to Vox! bit.ly/givepodcasts Learn more about your ad choices. Visit podcastchoices.com/adchoices

Yes, an entire episode on butts. Primatologist and anthropologist Natalia Reagan joins to chat about the caboose: why do we have butts? Why do we like butts? How do we appreciate ours even more? She drops knowledge on bidets, wiping, twerking, the mystical field of Rumpology, how our derrieres have our back, plus butt dimples, and crack formations. Also: some personal revelations and getting back on your feet after a curveball. This one is goofy as hell and you’re in for more puns than you’ll know what do do with.

Follow Natalia at Twitter.com/Natalia13Reagan and Instagram.com/Natalia13Reagan

Natalia’s website: https://nataliareagan.com

A donation was made to https://projectchimps.org/

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Sound editing by Jarrett Sleeper of MindJam Media & Steven Ray Morris

Theme song by Nick Thorburn

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