Discover 15 amazing animals that were thought to be extinct but were found alive. These are nature's greatest comebacks.

Two marsupial species thought long extinct, until now known only from fossils, were found alive in New Guinea through a collaboration of scientists, indigenous communities and citizen scientists. The ...

Researchers say the remarkable discovery was made using fossils, photos and a misidentified museum specimen Arman Muharmansyah/Australian Museum Two marsupials ...

Sometimes, nature delivers a surprise that feels almost miraculous. Scientists have confirmed that two small marsupial species — the pygmy long-fingered possum and the ring-tailed glider — are still ...

What if extinct animals weren't really extinct? The methods used to declare a species extinct are not as fool proof as people might assume. From eyewitness accounts to last known photographs, there is ...

Most people have seen a zebra in person, either in the wild or in captivity. Their black and white stripes make them unique ...

Colossal Biosciences, the company that produced a trio of modern-day dire wolves, is expanding to a half-dozen species that it wants to bring back. The latest extinct animal the so-called ...