Biologists previously believed modern birds had evolved 20 million years later than the new evidence suggests.

Birds and feathers are strictly associated with each other. Feathers allow the winged creatures to fly, stay warm, and put [… ...

Newly described fossils show carnivorous dinosaurs seen in South America also thrived in the Cretaceous of southeastern ...

"Scorpion fossils are not as common as people might think," Huang noted. Before the discovery of Jeholia longchengi, only ...

Dinosaurs are really big parts of the popular imagination, and that's especially true of the T-Rex. But what would the world be like if they were still around?

B. syrtos, which boasted razor-sharp teeth and a powerful jaw, belonged to an extinct group of meat-eating mammals called ...