Some animals are capable of cooperating with members of other species. An interdisciplinary team explores the cognitive underpinnings of such cross-species collaborations, opening up a new perspective ...

Amazon mollies don't need a man, and never will. A new study finds they can purge and repair genetic mutations that would otherwise plague a self-cloning species.

Scientists may have been dramatically undercounting the number of vertebrate species on Earth. A large analysis of more than 300 studies suggests that for every recognized species of fish, bird, ...

Freshwater ecosystems across the world are in distress. As scientists better comprehend the extent to which lakes, ponds, rivers and marshlands—and the animal and plant life they support—are suffering ...

A new species of fish has been discovered in a well in India: It is tiny, blind and its brain is protected only by skin. A researcher from the Natural History Museum in Bern was involved in the ...