Fossils reveal how historical birds molted their feathers — which might assist clarify why ancestors of recent birds survived when all the opposite dinosaurs died

Birds are the one group of dinosaurs that survived the asteroid-induced mass extinction 66 million years in the past. However not all of the birds alive on the time made it. Why the ancestors of recent birds lived whereas so lots of their kinfolk died has been a thriller that paleontologists have been attempting to unravel for many years. Two new research level to at least one attainable issue: the variations between how trendy birds and their historical cousins molt their feathers.