Much of what you know about how Dinosaurs lost is wrong

The by now iconic scene comes from a scientific paper first published on June 6, 1980, in Science magazine by a young geologist at the University of California at Berkeley, Walter Alvarez, and his Nobel Prize–winning father, Luis Alvarez. In the 35 years since, the impact hypothesis has become the most widely accepted explanation for the sudden disappearance of large nonavian dinosaurs (those weighing more than 40 pounds) and the demise of six out of every 10 species in a mass extinction that happened about 66 million years ago.
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