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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
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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.

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Season
Fixing Daylight Saving Time Is THIS Easy
12:19
Do the supposed advantages for springing forward and falling back hold up?
Sunlight Is Way Older Than You Think. Here’s Why…
8:23
The sunlight we see is tens of thousands of years old. How is that possible?
Why are Human Babies So Helpless?
8:19
If humans are so smart, why are our babies so… un-smart?
Can Supercrops Feed 10 BILLION People?
6:28
How will we do a Green Revolution 2.0?
Can Trees Really Fight Climate Change?
10:44
Can trees really save us from climate change?
Could You Be a Chimera? (ASL)
9:43
Could You Be a Chimera?
This Could Change the Future of Space Travel
11:30
I went to NASA in Houston to talk to astronaut Don Pettit.
The Strange (Unexpected) Reason Ice is Slippery
7:20
Why is ice slippery? It's a more complicated answer than it seems!
Recycling Is Broken. Here’s How We Can Fix It.
11:11
Recycling is broken. Here's how we can fix it.
I Tried Eating Bugs… Here's What I Learned
14:55
People say insects are the food of the future.
Evolution Fails in the Human Body
11:53
Here’s a rundown of a few of the human body’s biggest evolutionary fails!
This Face Changes the Human Story
13:11
Meet your cousin: Homo naledi.
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