The Guam kingfisher was extinct in the wild. Through coordinated breeding, cultural consultation, and careful reintroduction ...

‘Extremely adaptable’ bird species are declining at an alarming rate – with worrying implications for humans. View on ...

Researchers have revealed that North American birds are declining at an accelerating rate in three regional hotspots ...

Numerous studies report declining bird numbers not caused by the typical threats of habitat loss or urbanization.

Terror birds were large flightless predators that dominated parts of South America after the extinction of the dinosaurs. Fossil evidence shows they relied on powerful legs for speed and a massive ...

February, biologists have been struggling to control an outbreak of avian flu in a colony of more than 1,300 elephant seals ...

Until now, scientists have only known about the animals from fossils. But they suspected the creatures might still be alive, ...

A UN report warns that nearly half of the world’s migratory species are declining, and about one in four face the risk of extinction.

Many mammals have fur the color of brown and black. Why don't they have more exotic colors, like purple and neon pink?

The chances of finding one mammal species thought to be lost was ‘almost zero’ and finding two is ‘unprecedented’, biologist Tim Flannery says ...

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

Scientists wanted to know why the iconic triceratops had such an unusually large nose compared to most species on Earthj.