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Season 1 Episode 54 | 9m 15s
One of the most dynamic, transformative, and potentially dangerous features in North America is also responsible for some of the continent’s most amazing fossil deposits. It’s a supervolcano we now call Yellowstone.
Aired: 08/28/18
Video has closed captioning.
How a Supervolcano Made the Cenozoic’s Coolest Fossils
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Human ancestors were already walking 3.6 million years ago. But who was first to walk?
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