Mammals Grew 1000 Times Larger After the Demise of the Dinosaurs

Researchers have demonstrated that the extinction of dinosaurs some 65 million years ago paved the way for mammals to get bigger, about a thousand times larger than they had been when dinosaurs roamed the earth. The study, released today in the journal Science, is the first to quantitatively document the patterns of body size of mammals after the existence of dinosaurs.

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