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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
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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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7:59
When did we start practicing medicine in its varied, complex forms?
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Why Is It So Hard to Tell the Sex of a Dinosaur?
12:07
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11:57
What are animal-like fossils doing in rocks a billion years old?
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Paranthropus lived alongside our ancestors. If we are still here, why aren’t they?
How Ancient Microbes Rode Bug Bits Out to Sea
8:42
Exoskeleton fragments may have allowed microbes to sail the ocean and change the world.
Why Only Earth Has Fire
10:45
Fire only exists only on Earth because fire can’t exist without life.
Beans & Bees (Not Bats) Gave Us Butterflies
7:09
Turns out bats didn’t give us butterflies and we should be thanking bees and beans.
The Huge Extinctions We Are Just Now Discovering
8:58
Graptolites show us how unpredictable the Silurian period really could be.
When Did We Stop Being Naked?
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How can we figure out when we first started wearing clothes?
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