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Eons
When We First Walked
Season 1
Episode 57
Fossilized footprints have proved that human ancestors were already striding across the landscape 3.6 million years ago. But who started them on that path? What species pioneered this style of locomotion? Who was the first to walk?
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12:08
Geologists have been able to identify crucial episodes in life’s history.
12:20
Our image of dinosaurs has been constantly changing since naturalists started studying the
5:05
Even the most ancient-looking organisms show us that evolution is always at work.
3:54
A 270-million-year-old sea creature called Helicoprion that once swam the seas.
7:36
Natural history is full of living things that were long thought to have gone extinct only
5:21
Take a close look and you might see a little bit of yourself.
4:27
Today, we’re familiar with two types of flying vertebrates -- birds and bats.