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

There are 8 carpal bones, 5 metacarpal bones, and 14 phalanges in your hand and wrist. Let's take a closer look.

An analysis of two theropod dinosaur fossils has shown that they had a type of carpal bone (pisiform) in their wrists—a bone ...