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When sharks swam the Great Plains

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If you’ve ever been to, 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.

What are the implications of finding fossilized stomach contents for understanding the diets and interactions of marine predators in the Western Interior Seaway?

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