Professor Emily Jane McTavish and colleagues at the Cornell Lab of Ornithology have mapped the evolution of every known bird ...

Knife-toothed reptiles called sebecids went extinct on the mainland 10 million years ago. New fossil evidence puts them on an island 4 million years ago.

Imagine an ancient world where shadows stretched beneath colossal trees, and the air shimmered with heat and humidity. In ...

Imagine a creature so immense, so breathtakingly large, that its shadow could swallow you whole as it soared overhead.