New evidence suggests that passive wing flapping may have arisen earlier than gliding flight
Birds produce varying coloration in their feathers by using nanoscale arrays of melanin-filled organelles layered with keratin
Just like human dandruff, dinosaur fossil dandruff is made of tough cells called corneocytes, which in life are dry and full of the protein keratin
Researchers from China, Canada, and the University of Bristol have discovered a dinosaur tail complete with its feathers trapped in a piece of amber
Scientists have successfully replicated the molecular processes that led from dinosaur snouts to the first bird beaks
The study applied new numerical methods that calculate the rate of evolution of different characteristics across a whole evolutionary tree.