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Eons
Living Fossils' Aren't Really a Thing
Season 1
Episode 16
Crocodiles, horseshoe crabs and tuatara are animals that have persisted for millions of years, said to have gone unchanged since the days of the dinosaurs. But even the most ancient-looking organisms show us that evolution is always at work.
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Tiny mammals and a group of lizard-like reptiles shared a trait that helped them survive extinction.
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Where the space rock came from 66 million years ago that crashed and killed the dinosaurs.
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Fish evolved terrestrial traits to...stay fish?
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