Scientists think they've found the origin of the asteroid that wiped out the dinosaurs. It could help prevent a future mass extinction on Earth.

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Dinosaurs gather around a pond near an ominous red sky
Many experts agree an asteroid led to the extinciton of the dinosaurs.

MARK GARLICK/SCIENCE PHOTO LIBRARY/Getty Images

A new fossil shows a prehistoric badger-like mammal and a dinosaur locked in 'mortal combat'

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A fossil of a Psittacosaurus dinosaur and Repenomamus mammal skeletons fighting, with the mammal on top and biting into the dinosaur
The Repenomamus is on top of the Psittacosaurus, biting into its ribs.

Gang Han

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