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Tag: Ordovician

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The Evolutionary Epic: Crash Course Big History #5

Hi, I’m John Green. Welcome to Crash Course Big History. Today we’re gonna be traversing the evolutionary epic – the great story of magnificent beasts, terrifying predators, quite a lot of extinctions, and countless varieties of evolutionary forms. It’s the

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How to Find Thousands of Oceanic Fossils in… Ohio?
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How to Find Thousands of Oceanic Fossils in… Ohio?

Thanks to Friends of Caesar Creek for supporting this episode of SciShow! Go to friendsofcaesarcreeklake.org to plan your next outdoor adventure! [♪ INTRO] In the 1970s, the U.S. Army Corps of Engineers was excavating a spillway out of Caesar Creek

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The 6 Craziest Extinctions Ever