small head, bipedal stance, feathers on the body and massive claws on the hands. While they were part of the dinosaur clade called theropods that included all the meat-eaters such as Tyrannosaurus ...

The small, leaf-shaped teeth of therizinosaurs ... and had three claws up to a meter in length on each hand, the longest claws of any dinosaur ever found. But an intriguing aspect of the new ...

Photograph by Kobayashi, et, al Dinosaur claws were made of bone covered in keratin sheaths, the same biological component as our fingernails. The hands of Duonychus showed that the keratin part ...

It had only two raptor-like clawed fingers per hand, which the creature used not to maul other prey, but to snack on vegetation. Two fossilized claws, as well as parts of the dinosaur’s tail ...