Key to the first bird’s flight was likely a set of never-before-seen feathers, called tertials, found on the upper arm of the ...

The Chicago Archaeopteryx features more soft tissue and delicate skeletal details than any known fossil of its kind, and ...

Most modern birds solved this issue by evolving shorter appendages to accompany their tertial feathers. But even though ...

New insights into the flying capabilities of a nonbird dinosaur were drawn from an unusually well-preserved specimen known as ...

A polished piece of amber from Myanmar has revealed one of the most significant fossil discoveries in recent years– an ...