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21: Paleontologist Evelyn Vollmer, Figuring out the Age of the Earth, and What Defines a Dinosaur

Let's Learn Everything!

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Are We Getting Closer to Recent?

Charles Darwin wrote in Origin of the Species, his guess was 300 million for how old the earth was. This is less than 100 years ago. By this point, like they're kind of talking about the rock cycle and all this. We didn't realize that continents were moving for a really long time.

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