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Eons
When Sharks Swam the Great Plains
Season 2
Episode 5
If you’ve ever been to, or lived in, or even flown over the central swath of North America, then you’ve seen the remnants of what was a uniquely fascinating environment. Scientists call it the Western Interior Seaway, and at its greatest extent, it ran from the Caribbean Sea to the Canadian Arctic.
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The ability to make and use fire has fundamentally changed the arc of our evolution.
11:38
Sea scorpions thrived for 200 million years, coming in a wide variety of shapes and sizes.
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The California condor is the biggest flying bird in N. America since the Pleistocene Epoch
9:21
Not too long ago, our early human ancestors were under threat of attack from predators.
