Prehistoric Road Trip

How the Soil Tells the Story of the Dinosaur Extinction

North Dakota paleontologist Dr. Clint Boyd shows Emily Graslie a layer of clay that reveals the Cretaceous-Paleogene extinction event – the day an asteroid impact wiped out the dinosaurs. Dr. Boyd explains what clues the soil offers about that fateful day.

How the Soil Tells the Story of the Dinosaur Extinction

3m 18s

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