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Why Do Men Have Nipples? - 12 Days of Evolution #7

Why Do Men Have Nipples? - 12 Days of Evolution #7

Season 4 Episode 9
1:31
Is Evolution Random? - 12 Days of Evolution #2

Is Evolution Random? - 12 Days of Evolution #2

Season 4 Episode 4
1:17
What Is Evolution, Anyway? - 12 Days of Evolution #1

What Is Evolution, Anyway? - 12 Days of Evolution #1

Season 4 Episode 3
1:25
Can Coral Reefs Survive Climate Change? #OursToLose

Can Coral Reefs Survive Climate Change? #OursToLose

Season 4 Episode 1
5:05
Could Planet Minecraft Actually Exist?

Could Planet Minecraft Actually Exist?

Season 4 Episode 2
4:47
Attack of the Cosmic Space Junk!

Attack of the Cosmic Space Junk!

Season 4 Episode 40
5:14
Could You Really Survive Being Shrunk?!

Could You Really Survive Being Shrunk?!

Season 4 Episode 41
4:44
Why Are Some Animals Venomous?

Why Are Some Animals Venomous?

Season 4 Episode 42
5:08
The Invisible Creatures That Keep You Alive!

The Invisible Creatures That Keep You Alive!

Season 4 Episode 43
5:23
Could Bigfoot REALLY Exist?

Could Bigfoot REALLY Exist?

Season 4 Episode 15
6:36
Who Shares Your Birthday?

Who Shares Your Birthday?

Season 4 Episode 16
5:16
This Is Not a Rainbow

This Is Not a Rainbow

Season 4 Episode 17
3:17
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It's Okay to Be Smart

Why Don’t Woodpeckers Get Concussions?

Season 4 Episode 56

A look into the science of concussions.
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