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When Sharks Swam the Great Plains

When Sharks Swam the Great Plains

Season 2 Episode 5
11:45

When Apes Conquered Europe

Season 2 Episode 6
8:08
When Humans Were Prey

When Humans Were Prey

Season 2 Episode 8
9:21
How Blood Evolved (Many Times)

How Blood Evolved (Many Times)

Season 2 Episode 9
9:56
The Humans That Lived Before Us

The Humans That Lived Before Us

Season 2 Episode 10
11:52
The Island of Shrinking Mammoths

The Island of Shrinking Mammoths

Season 2 Episode 11
11:20
The Giant Bird That Got Lost in Time

The Giant Bird That Got Lost in Time

Season 2 Episode 15
8:33
When We First Made Tools

When We First Made Tools

Season 2 Episode 16
9:08
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Eons

How Sloths Went From the Seas to the Trees

Season 2 Episode 4

The story of sloths is one of astounding ecological variability, with some foraging in the seas, others living underground, and others still hiding from predators in towering cliffs. So why are their only living relatives in the trees?

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That Time It Rained for Two Million Years
7:31
234 million years ago, the climate suddenly changed for the wetter.
Journeys Through Geologic Time
12:34
The Cenozoic marks the rise of organisms that look a lot like us.
The Weird, Watery Tale of Spinosaurus
7:28
In 1912, a fossil collector discovered the world’s only known semi-aquatic dinosaur.
The Age of Reptiles in Three Acts
10:45
Reptiles in time grew to become some of the largest forms of life ever to exist on earth.
How the Chalicothere Split In Two
7:03
How did two of the same kind of animal end up looking so different?
How the Squid Lost Its Shell
8:05
Ancestors of cephalopods all had shells until it proved to be their biggest weakness.
What Was the Ancestor of Everything?
11:06
The search for our origins go back to a single common ancestor.
Inside the Dinosaur Library
7:19
We talk to Amy Atwater, Collections Manager at the Museum of the Rockies.
The Most Useful Fossils In The World
5:49
Mysterious fossils can be used to tell time in the deep past.
What a Dinosaur Looks Like Under a Microscope
8:09
What has been observed and learned from putting dinosaur bones under a microscope.
How the Turtle Got Its Shell
8:29
Where did turtles come from? And how did the they get their shells?
The Other Explosion You Should Know About
6:25
The Sudden burst of diversity that marked the dawn of truly complex life on our planet.
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