Thursday, November 12, 2015

After a Mass Extinction, Only the Small Survive - The New York Times

After a Mass Extinction, Only the Small Survive - The New York Times:



 "From sharks to giraffes, many of Earth’s biggest and most magnificent species are threatened with extinction. A new study of the fossil record indicates that once large vertebrates disappear, evolution cannot quickly restore them — for tens of millions of years, most animals remain small."



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