Fifty thousand years ago, North America's landscapes were alive with an astonishing array of enormous creatures. Massive woolly mammoths roamed vast icy plains, while dense forests echoed with the ...

The Cambrian explosion, long hailed as one of the most significant events in the history of life on Earth, has now been ...

New dinosaur Enigmacursor clarifies taxonomy and highlights overlooked species in the Morrison Formation. A small dinosaur ...

An ichthyosaur preserved beneath a Chilean glacier is helping scientists understand the extinct animals and the world around them as a supercontinent broke up.