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What really killed the dinosaurs? (It wasn’t just the asteroid) - Sean P. S. Gulick

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Earth School

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Sixty-six million years ago, near what’s now the Yucatán Peninsula, a juvenile sauropod feasted on horsetail plants on a riverbank. Earth was a tropical planet. Behemoth and tiny dinosaurs alike soared its skies and roamed its lands while reptiles and tentacled ammonites swept its seas. But, in an instant, everything would change. Sean P. S. Gulick details one of Earth's most devastating periods.

Is it correct to say that all dinosaurs went extinct? Why or why not? In what ways did some life survive the effects of the impact?

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  • Video created by TED-Ed
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