Dinosaurs are the extinct relatives of birds that roamed the lands and seas of ancient Earth. They first appeared around 240 million to 230 million years ago in the Triassic Period, and went extinct ...

A discovery about the dark fur of early mammals confirms long-held theories about their evolutionary and ecological behavior.

The new Argentine dino might give us clues to what the world was like before the asteroid wiped out their kind.

It’s fun to imagine secret dinosaur survivors living today, hidden in a remote corner of Earth. But the truth of who made it ...

His research shows that as birds evolved, their adult skulls kept features that extinct dinosaurs had only as juveniles, paving the way for the avian beak. Photographed at the Peabody Museum of ...

The new research is the first to look back at early mammals in full color. Using advanced fossil imaging methods and a ...

20, 2025 — Feathers, essential for thermoregulation, flight, and communication in birds, originate from simple appendages known as proto-feathers, which were present in certain dinosaurs.By ...

During the age of dinosaurs, early mammals probably lacked the stripes and spots of their modern relatives, having uniformly dark, drab coats.

Scientists suggest that bigger brains in bird ancestors led to more flexible skulls, playing a key role in their evolution.

Our earliest mammalian ancestors avoided the dominant dinosaurs by only coming out at night and having uniformly dark, ...