Scientists estimate that roughly one quarter of all plant and animal species on Earth are now at risk of extinction. Habitat ...

A citizen scientist's wildlife photo helped researchers confirm two marsupial species thought extinct for over 7,000 years are still alive.

Earth looked much different not just millions, but even decades and centuries ago. Many animal species that once existed are nowhere to be found. From human activity to climate change, new animals ...

"It's a really strange animal, and the weird twist in the jaw drove us crazy trying to figure it out." ...

Two tiny animals believed to have been extinct thousands of years ago have been rediscovered alive in the remote forests of Indonesia.

A research team traveled to South Africa’s Umzimkhulu River in 2017 with a specific mission: find surviving pockets of the ...

Researchers identified a new freshwater fish species in South Africa after years of genetic testing and analysis.

How scientists (and the rest of us) are finding 16,000 new species a month.

No other animal is as inexorably linked with extinction as the dodo, an odd-looking flightless bird that lived on the island of Mauritius in the Indian Ocean until the late 17th century. The arrival ...

A search for a fish lost to extinction led to a brand-new species hiding in a South African river.