Birds are the only dinosaur lineage that survived until today. About 66 million years ago at the Cretaceous–Paleogene (K–Pg) boundary, a mass extinction event destroyed all non-avian dinosaurs, ...

Mesozoic birds and their world -- The ancestry of birds and the origin of flight -- The bizarre Mononykus and its kin : an evolutionary experiment -- Archaeopteryx : the earliest bird -- Rahonavis and ...

Evolutionary biologists at Johns Hopkins Medicine report they have combined PET scans of modern pigeons along with studies of dinosaur fossils to help answer an enduring question in biology: How did ...

1. Introduction to the morphology, development, and ecology of feathers -- 2. Molecular and cellular mechanisms of feather development provide a basis for diverse evolution of feather forms -- 3. The ...

New Haven, Conn. — The evolutionary path from dinosaurs to birds included the development of a tiny wrist bone that ultimately proved crucial for stabilizing wings in flight. A new study suggests that ...

(Reuters) - Scientists have unearthed in southeastern China the fossil of a quail-sized bird that lived about 150 million years ago during the Jurassic Period and possessed surprisingly modern traits, ...

Scientists uncovered a 149-million-year-old bird fossil in southeastern China with unexpectedly modern traits they believe could rewrite the evolutionary history of birds. The recently discovered ...

Modern birds are the living relatives of dinosaurs. Take a look at the features of flightless birds like chickens and ostriches that walk upright on two hind legs, or predators like eagles and hawks ...

The short-tailed find with the forelimb of a raptor is an extremely rare example of the transition from dinosaurs to birds Chinese palaeontologists have found what could be the world's oldest bird ...