Scientists have discovered a 99-year-old bird wing trapped in amber that shows the similarities between dinosaurs and modern bird feathers.
원문출처 : http://www.cnn.com/videos/world/2016/07/01/dinosaur-wing-feather-amber-orig-vstan.cnn
원문출처 : http://www.cnn.com/videos/world/2016/07/01/dinosaur-wing-feather-amber-orig-vstan.cnn