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Eons
When We First Made Tools
Season 2
Episode 16
The tools made by our human ancestors may not seem like much when you compare them to the screen you’re looking at right now but their creation represents a pivotal moment in the origin of technology and in the evolution of our lineage.
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Yellowstone contains some of North America's most amazing fossil deposits.
9:08
Horses vanished from North America for 10,000 years until a mammal brought them back.
9:37
420 million years ago, some fish wore armor – and it may have served a surprising purpose.
7:59
In the 1800s, miners found beautifully preserved fossils of animals from the Eocene.
8:38
Insects were the first animals to fly. Scientists are still working on how it happened.
9:20
To celebrate our first anniversary together, we’d like to answer some of your questions.
6:54
Tyrannosaurus rex had tiny arms. How did this happen, and why did it keep them?
8:40
Before a group of fish could live on dry land, they acquired the ability to breathe air.
7:29
Where did viruses come from and how did they evolve? Are viruses alive?
9:07
Why the Triassic was full of creatures that look a lot like other, more modern species.