But since dinosaurs in different times and places had a variety of protofeather types, paleontologists are able to piece together how feathers went from basic filament structures, to ones that allowed flight.

但由于不同时代和地点的恐龙有多种原始羽毛类型，古生物学家能够拼凑出羽毛是如何从基本的丝状结构发展为可以飞行的结构的。