The dinosaurs were not in decline before the asteroid hit, a new study finds. Instead, poor fossilization conditions and ...

Titanosaurs were among the largest land animals to ever exist. Now, paleontologists attribute their success to unique adaptations that combined traits of both reptiles and mammals. Let’s discover how ...

New research overturns the idea that dinosaurs were already dying out before the asteroid hit.

A new study suggests the platypus and echidna — the only egg-laying mammals — had a water-dwelling ancestor. The finding ...

Ancient volcanic winters, not just carbon dioxide warming, likely triggered the end-Triassic extinction when dinosaurs rose ...

Earth was once ruled by giant reptiles. Tyrannosaurus rex, the king of tyrant lizards, crushed bones. Spinosaurus hunted in ...

The Permian-Triassic extinction eliminated almost 90 percent of all species. The devastating loss came after violent volcanic ...