Eons

Season 2, Episode 43

Episode Title: When Sharks Swam the Great Plains

Air Date: 2018-12-04

Overview:

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.