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Fungus Amungus

Radiolab

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The Evolution of Reptiles

Arturo Casa de Val is a doctor and microbiologist at Johns Hopkins University. He says we don't really know what happens 65 million years ago or 100 million years ago. So here we are in the realm of hypothesis speculation, he says. If you look at our world today, we still have reptiles. A crocodile invested riverbank. This is a Gaboon Viper from West Africa. We have lizard. And so on.

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