For nearly 30 million years, a 2,000-pound beast known as the entelodont ruled a sweeping empire from Mongolia to what is now ...

Over a million species of animals and plants are now hanging by a thread, more than ever before in human history, says the International Science-Policy Platform on Biodiversity and Ecosystem Services ...

In the world of biology, being declared extinct is usually a permanent sentence, but nature occasionally loves to prove us wrong. These incredible animals, often referred to as "Lazarus species," ...

Back in 1999, the BBC’s Walking with Dinosaurs series spawned a new format: wildlife “documentaries” featuring long-extinct animals. I’m a big fan of this genre, and Prehistoric Planet: Ice Age, made ...

Dire wolves were massive and highly intelligent animals nearly the size of a small horse, capable of ripping a man’s arm off as easily as a dog kills a rat. They lived in cold regions in a place ...

On a lawn inside the Bronx Zoo, rows of headstones display multiple animal species, making for an eerie display during the month of October. An Instagram post from an account known as Inside History ...

The idea of resurrecting extinct organisms is alluring; I would love to see one of the strange Cambrian animals like Hallucigenia and Opabinia, feathered dinosaurs, the giant hornless rhino "Walter" ...