For thousands of years, scientists knew of two tiny marsupials in New Guinea only through fossils and local legend. Researchers had long considered these species extinct. However, a team recently ...

So many humans live on Earth, it’s hard to imagine there are animals we haven’t seen for years, decades, or even millions of ...

In the mallee woodlands of New South Wales, Australia, pint-sized marsupials called red-tailed phascogales once thrived.

The Large Tortoiseshell has only had rare sightings over the last three decades but experts say any updated list of species would 'probably class it as no longer extinct' ...

A rare painted river terrapin hatched at the Smithsonian National Zoo, giving conservationists hope for a turtle species ...

A stunning butterfly classed as extinct for 30 years has been spotted across parts of England. The Large Tortoiseshell has ...

Partula snails all but vanished from Polynesia after the arrival of a carnivorous foreign snail. But a global alliance of zoos has worked to bring them back.

A "charasmatic" butterfly classified as extinct for three decades has been seen across various parts of southern England. The Large Tortoiseshell has experienced only sporadic sightings over the past ...

A Trumpeter Swan is turning heads after it was spotted along the waterfront in Brooklyn for the first time ever recorded.

Wildlife charity Butterfly Conservation say that if sightings continue at this rate, they will officially remove the large tortoiseshell from their list of extinct British butterflies. Find out more ...

In paleontology, lineages that drop out of the fossil record and then re-emerge after long periods are termed ‘Lazarus taxa.’ ...

Scientists have rediscovered two marsupial species in New Guinea that were believed to have gone extinct 6,000 years ago. The ...