Over a million species of animals and plants are now hanging by a thread, more than ever before in human history, says the ...

The range of the Barbary lion once stretched from the shores of Morocco to the Red Sea in Egypt, but today they are all gone thanks to one species.

For the first time, scientists sequenced the genomes of 20 individual lions, including extinct cave lions, revealing insights into their family tree.

An overlap with expanding H. sapiens populations between 40,000 and 50,000 years ago, and a consequent competition for resources, was likely one reason the Denisovans went extinct, Stringer said.

Climate change and habitat loss could cause more than 500 bird species to go extinct in the next 100 years, researchers from ...

TRINITY COUNTY, Calif. — A mountain lion that attacked a summer camp employee earlier this month in Trinity County has been captured and euthanized. The California Department of Fish and Wildlife says ...

If the cave art painting really captures a dicynodont, it predates formal paleontology. They've been extinct for about 250 ...

What happened to all the megafauna? From moas to mammoths, many large animals went extinct between 50 and 10,000 years ago. Learning why could provide crucial evidence about prehistoric ecosystems ...

(Pictures: Extinct Species That Could Be Brought Back.) Yes, the set of plants alive a century or so ago when the passenger pigeon went extinct are probably still here. Is the pigeon's habitat intact?