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Attack of the Cosmic Space Junk!

Attack of the Cosmic Space Junk!

Season 4 Episode 40
5:14
Why Are Some Animals Venomous?

Why Are Some Animals Venomous?

Season 4 Episode 42
5:08
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
Is Epigenetic Inheritance Real?

Is Epigenetic Inheritance Real?

Season 4 Episode 27
4:51
Why Seasons Make No Sense

Why Seasons Make No Sense

Season 4 Episode 18
3:01
100,000,000 Years From Now

100,000,000 Years From Now

Season 4 Episode 19
5:28
Are You Smarter Than A Slime Mold?

Are You Smarter Than A Slime Mold?

Season 4 Episode 28
4:39
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It's Okay to Be Smart

How An Igloo Keeps You Warm

Season 4 Episode 60

Building a perfect igloo takes cool science!