Feathered dinosaurs were first reported in the 1990s, but many mysteries remain about how and when feathers emerged.

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 ...

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