In Rwanda's Volcanoes National Park, the last thousand endangered mountain gorillas live in the wild. Tourism for the ...

A bird that's extinct in the wild recently hatched at the National Aviary. The aviary announced this week that its breeding ...

The crested ibis' revival is a story of transnational cooperation between nations that historically haven't always seen eye ...

Three fossa cubs have been born at a Paris zoo – a rare event for one of Madagascar’s most elusive and endangered mammals.

The Guam kingfisher was extinct in the wild for decades. ©Diego Tirira from Quito, Ecuador, CC BY-SA 2.0 , via Wikimedia Commons – Original / License ...

Colossal’s bold announcements have drawn criticism from many scientists, but the billion-dollar firm is not backing down.

The Brief The Sihek is among the most endangered bird species in the world. For the first time in almost 40 years, recently released Siheks have laid eggs in the wild.

Their decline was so rapid, however, they became extinct in the wild. Today, thanks to recovery and reintroduction efforts, their wild population has rebounded to 257 wolves, with many reproducing ...

Photos show the historic reintroduction, which is part of an ongoing project to bring back a species considered locally extinct for over 40 years.

Some of nature's rarest plants, these specimens fetch astonishing prices, demand special care, and are prized among plant ...

Alala have been extinct in the wild since 2002. The five birds that were released on Maui were reared in captivity, but they have been flying free on the slopes of Haleakala since November.