Dinosaurs wiped out by asteroid, not volcanoes, researchers say

Study says surge in volcanic activity could not have caused Cretaceous/Paleogene extinction event

A 66m-year-old murder mystery has finally been solved, researchers say, revealing an enormous asteroid struck the killer blow for the dinosaurs.

The Cretaceous/Paleogene extinction event resulted in about 75% of plants and animals – including non-avian dinosaurs – being wiped out. But the driving cause of the catastrophe has been a topic of hot debate.

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