SCIENCE BRIEFS: Feathered T-REX?
T rex ancestor had feathers A 130 million year old fossil suggests that the ancestor of Tyrannosaurus rex had feathers. The dog-sized dinosaur had thin filaments covering its body, not true feathers, but the evolutionary precursors of feathers. They would most likely have been used for insulation. Dilong paradoxus, which means Emperor dragon, is the […]