Feathers fly

 作者:韶霰     |      日期:2019-03-06 04:18:05
By Jeff Hecht PALAEONTOLOGISTS claim to have found feathers on a lizard-sized reptile that evolved 220 million years ago, 70 million years before the oldest known bird, Archaeopteryx. The long-neglected fossil, called Longisquama insignis, has reignited the debate over whether birds are feathered dinosaurs or whether they evolved from earlier reptiles. “It’s a stake in the heart of the dinosaur theory, which I haven’t believed in years,