An extinct species of fanged kangaroo survived five million years longer than previously believed.
The man behind this month's doomsday prophecy has pushed the apocalypse back another few weeks.
The species, which has long teetered on the edge of extinction, is finally starting to make a comeback.
A new breeding program is aiming to bring back a species of giant tortoise that died out 150 years ago.
Scientists have identified an extinct species of mini-dolphin that lived over 30 million years ago.
Scientists have revealed the immense destructiveness of the asteroid that wiped out the dinosaurs.
Scientists have found evidence of a huge, hulking semi-flightless swan that went extinct 500 years ago.
Scientists at the University of Alberta have managed to recreate a relative of the deadly smallpox virus.
A mass extinction event 200 million years ago made it possible for the dinosaurs to dominate the planet.
Scientists have been drilling in to the crater left behind by the asteroid that wiped out the dinosaurs.
Scientists have found a way to identify extinct species of human by analyzing the sediment inside caves.
A catastrophic rise in temperature wiped out the vast majority of life on Earth 250 million years ago.
A skull belonging to what is thought to be an extinct species of giant polar bear has been discovered.
A new study has indicated that resurrecting long-extinct species could ultimately do more harm than good.
Biologists have warned that up to a half of all species could be wiped out by the end of the century.
A worrying new study has shown just how vulnerable many of the world's primate species actually are.
A new theory has suggested that the dinosaurs became extinct because they couldn't hatch quickly enough.
Teams from Russia and South Korea are working together to bring the extinct species back to life.
Conservationists have warned that the world's fastest land animal is on the verge of being wiped out.
The world's tallest animal has suffered a worrying decline in numbers over the last three decades.