Scientists have discovered a new species of dinosaur - in the collection of a Mongolian museum - that they say "rewrites" the evolutionary history of tyrannosaurs. Researchers concluded that two 86 ...

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. Subscribe to our newsletter for ...

Long-necked sauropods ruled the land during the Jurassic and Cretaceous ages. These plant-eating giants appeared on every continent and grew to sizes no other land animal has matched. A key reason for ...

In the Cretaceous period, Earth was plagued by widespread volcanic activity, oceanic oxygen depletion events, and mass extinctions. Fossils from that era remain and continue to give scientists clues ...