Skip to main content

Up Next

Why Is Sex a Thing?

Why Is Sex a Thing?

Season 9 Episode 9
12:31
How Much Of You Is Alive?

How Much Of You Is Alive?

Season 9 Episode 10
12:05
How the Zebra Really Got Its Stripes?

How the Zebra Really Got Its Stripes?

Season 9 Episode 11
13:13
What Is Nothing?

What Is Nothing?

Season 9 Episode 15
14:06
Why Do We Dream?

Why Do We Dream?

Season 9 Episode 16
14:29
Here's What I Learned…

Here's What I Learned…

Season 9 Episode 18
16:20
The Unbelievable Science of How We Read

The Unbelievable Science of How We Read

Season 9 Episode 20
16:14
Back to Show
It's Okay to Be Smart

A Brief (Scientific) History of Butts

Season 9 Episode 8

Hold on to your butts. This episode is about… butts. The science and evolutionary history of your rear end, the down-low on your derriere, shining a little light where the sun don't shine… you get the picture. But(t) seriously, we don't talk about this all-important hole enough, and how, from an evolutionary perspective, it might be the most important orifice on your body.

Only Available with Passport Starting
Support Provided By
Season
What If We Could See Nature In Infrared?
8:51
Why are trees and other plants green? The answer is full of surprises.
What Color Is A Banana?
8:46
How do we see color in the first place?
What’s In a 20,000 Year-Old Cube of Ice?
11:20
Earth’s climate is changing in a big way.
The History of Money (From Barter To Bitcoin)
9:36
Money. We all use it. But is it real?
7 Scientific Urban Legends Debunked!
11:24
I look at a few of the most famous incorrect factoids in science.
Why Don't Birds Lay Square Eggs?
7:21
What is ”egg-shaped” even?
How Blind People See With Sound
16:07
Blind YouTuber Molly Burke shows Joe Hanson a new way to see.
Why do Trees Talk to Each Other?
5:27
Walk into any forest, and beneath your feet is what helps make life on Earth possible.
Why We Are Losing the Night Sky
10:26
It never gets dark anymore. Not REALLY dark, anyway.
Apollo’s Most Important Discovery: NASA’s Moon Rock Vault
10:25
Fifty years ago, we sent the first astronauts to walk on the moon’s face.
Could You Be a Chimera?
9:43
Could You Be a Chimera?
Using Gene Editing To Repaint Butterfly Wings
11:12
The Art of Gene-Editing Butterflies (Painting with CRISPR!)
Active loading indicator