Mirasaura grauvogeli had a featherlike crest and a tail like a monkey. “It's been a long time since I've been so blown away by a new fossil discovery.” ...

Hidden layers of colour in the plumage of tanagers and some other songbirds explain what makes them so eye-catching ...

Typically, male birds have more vivid colours than females. As Charles Darwin first explained, the most colourful males are ...

A pivotal wrist bone in birds appears earlier in theropods. This could shift views on how flight evolved. An analysis of two ...