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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
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Eons

How Worm Holes Ended Wormworld

Season 3 Episode 38

Elongated tubes, flat ribbons, and other “worm-like” body plans were so varied and abundant that a part of the Ediacaran is sometimes known as Wormworld. But in the end, the ancient Wormworld was ended by the actions of its very own worms.

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