Question Earthority!

“Maybe you learned this in school: The big dinosaur die-off 65 million years ago was a liberation for mammals, and they quickly produced a bunch of new species that included ancestors of humans and other modern-day creatures. Remember? Well, a new study says, forget it. Scientists who constructed a massive evolutionary family tree for mammals found no sign of such a burst of new species at that time among the ancestors of present-day animals. Only mammals with no modern-day descendants showed that effect. ‘I was flabbergasted,’ said study co-author Ross MacPhee, curator of vertebrate zoology at the American Museum of Natural History in New York.” (03/29/07)