What is the Tully monster? Learn more about the near-nameless fossil, and why experts still can't agree on its classification ...

Internal anatomy of the fossil. Credit: Durham University. The fossil, named Youti yuanshi, dates back over 520 million years, during the Cambrian period, a crucial era for the evolution of modern ...

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

Internal Medicine Residency The Montgomery Internal Medicine Residency Program provides high-caliber graduate medical education for trainees seeking diverse clinical experiences in both inpatient and ...

But ornithologists from the University of California recently found another reason that birds go astray. Drawing on six decades of bird-banding data, they demonstrated that vagrancy increases during ...