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How the Chalicothere Split In Two

How the Chalicothere Split In Two

Season 1 Episode 39
7:03
The Age of Reptiles in Three Acts

The Age of Reptiles in Three Acts

Season 1 Episode 40
10:45
The Weird, Watery Tale of Spinosaurus

The Weird, Watery Tale of Spinosaurus

Season 1 Episode 41
7:28
From the Fall of Dinos to the Rise of Humans

From the Fall of Dinos to the Rise of Humans

Season 1 Episode 42
12:34
That Time It Rained for Two Million Years

That Time It Rained for Two Million Years

Season 1 Episode 43
7:31
Why Triassic Animals Were Just the Weirdest

Why Triassic Animals Were Just the Weirdest

Season 1 Episode 44
9:07
Where Did Viruses Come From?

Where Did Viruses Come From?

Season 1 Episode 45
7:29
When Fish First Breathed Air

When Fish First Breathed Air

Season 1 Episode 46
8:40
Dinosaurs

How the T-Rex Lost Its Arms

Season 1 Episode 47
6:54
FAQs From Our First Year

FAQs From Our First Year

Season 1 Episode 48
9:20
When Insects First Flew

When Insects First Flew

Season 1 Episode 49
8:38
The Mystery of the Eocene’s Lethal Lake

The Mystery of the Eocene’s Lethal Lake

Season 1 Episode 50
7:59
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Eons

How the Squid Lost Its Shell

Season 1 Episode 38

The ancestors of modern, squishy cephalopods like the octopus and the squid all had shells. In ancient times, their shell was their greatest asset but it eventually proved to be their biggest weakness.
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