Tapanuli orangutans are the world's most endangered great ape. Fewer than 800 remain, all previously thought to be in their native Indonesia. But now an Indian zoo says it has one. An Indian court ...

A recent survey in Sri Lanka has given conservationists something to celebrate: The country's most threatened deer species is ...

Survival of snow leopard populations could be "precarious" in the future due to the way the elusive mountain cats have ...

A shark only just formally discovered might already be extinct - a fate no shark has yet suffered in the human era - while an Amazon river dolphin has become endangered, a Red List of species in ...

The epigenetic clock measures biological age and could help scientists assess the health of polar bears, dolphins, baboons ...

Earth has witnessed a parade of unique creatures over millions of years, from predators to ancient giants. These creatures, once rulers of land, sea, and sky. They left behind fossils which can be ...

This article was featured in One Great Story, New York’s reading recommendation newsletter. Sign up here to get it nightly. The way the federal agents swarmed Jack Schubarth’s ranch in Montana on a ...

Policy brief urges balanced animal-research rules, offering science blogs NABR IUCN keywords and full statement.

LIKE most Islanders, I’ve wandered through Jersey Zoo more times than I can count – first as an animal-obsessed child, pressing my face to the fences and imagining what it would be like to care for ...

From three species of Arctic seals to more than half of all birds globally, several animals have slipped closer to extinction ...

About 95 million years ago, a juvenile crocodyliform nicknamed Elton lived in what is now southwest Montana at the edge of the Western Interior Seaway. Measuring no more than 2 feet long from nose to ...