It Was Almost Certainly an Asteroid Impact that Wiped Out the Dinosaurs. In Fact, Volcanoes Might Have Helped Life Recover

It seems almost certain that an asteroid impact wiped out the dinosaurs. But only almost. Another competing theory won’t completely go away: the extinction-by-volcano theory.

A new study from the UK piles more evidence on the asteroid side of the debate, while adding a new volcanic twist. These researchers say that volcanic activity actually helped life recover from the asteroid strike.

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Massive Volcanic Eruptions 66 Million Years Ago Happened Almost Exactly When the Dinosaurs Died Off

The Deccan traps are an area of igneous rock in India that formed during a time of intense volcanic activity about 65 million years ago. Image Credit: Gerta Keller, Department of Geosciences, Princeton University

Everyone knows an asteroid strike wiped out the dinosaurs, right? Lots of evidence shows that the Chicxulub impact event had terrible consequences for the dinosaurs. But the picture is a little more complicated than that. Extreme volcanic activity may have contributed to the extinction.

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