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When Crocs Thrived in the Seas

When Crocs Thrived in the Seas

Season 3 Episode 41
9:08
How To Survive the Little Ice Age

How To Survive the Little Ice Age

Season 3 Episode 42
10:00
When Trees Took Over the World

When Trees Took Over the World

Season 3 Episode 43
7:28
How Weasels Got Skinny

How Weasels Got Skinny

Season 3 Episode 44
9:01
Where Are All The Squid Fossils?

Where Are All The Squid Fossils?

Season 3 Episode 45
7:21
How the Starfish Got Its Arms

How the Starfish Got Its Arms

Season 4 Episode 5
10:53
The Creature That Stumped Darwin

The Creature That Stumped Darwin

Season 4 Episode 6
6:46
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Eons

How Humans Became (Mostly) Right-Handed

Season 3 Episode 39

No other placental mammal that we know of prefers one side of the body so consistently, not even our closest primate relatives. But being right-handed may have deep evolutionary roots in our lineage. And yet, being a leftie does seem to come with some unexpected advantages.

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History Of This Two-faced Creature And What It Can Teach Us About Mass Extinction.
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The Heated Debate Around Younger Dryas.
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