Scientists discovered a dinosaur tail preserved in amber, revealing soft tissue, feathers, and clues leading to an incredible theory.

The artist’s impression shows a dromaeosaur, a type of feathered theropod, in the snow. This dinosaur group is popularly known as a raptor. A well-known dromaeosaur is Velociraptor, portrayed in ...

What experts lacked, but hoped for, was a non-bird theropod with preserved feathers to cinch the connection. Sinosauropteryx ...

During the course of their evolutionary history, the body size of some theropod groups gradually decreased. This trend, together with many other changes to the skeleton, ultimately led to the ...