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9:28
How 7,000 Years of Epic Floods Changed the World
9:00
The Evolution of the Heart
11:20
The Island of Shrinking Mammoths
11:52
The Humans That Lived Before Us
9:56
How Blood Evolved (Many Times)
9:21
Not too long ago, our early human ancestors were under threat of attack from predators.
10:45
What happened to the largest shark in history?
Today, apes live only in Africa and Asia but this wasn't always the case.
11:45
When Sharks Swam the Great Plains
11:45
The story of sloths is one of astounding ecological variability.
9:45
Camels' origins story begins in an environment you’d never expect: a rainforest.
7:14
For birds that can't fly, how did Ratites end up all over the world?
