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 ...

(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, ...

Mesozoic Pompeii -- The evolution of an airframe -- The origin of birds -- Archaeopteryx : an ancient wing -- Protoavis : a precocious Triassic bird -- Basal avialans : the long-tailed birds -- ...

Navaornis hestiae (center) documents a previously unknown intermediate stage in the evolution of the central nervous system between the earliest birds (like Archaeopteryx on the left) and living birds ...

The study found that bird species who nest in tree cavities have independently evolved heightened aggression across lineages, particularly in females. Scientists have long wondered whether evolution ...

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 ...