Governments of 13 countries where tigers still live have endorsed a plan to save the big cats from extinction.

A study of marsupial carnivores' skulls from the past 40 million years shows the creatures rose to the challenge of evolution just as their placental cousins did.

There is a limit to how convincingly the common cuckoo can mimic other birds, according to new research.

New research on pterosaurs suggests their wing function may have been key to the creatures' large size.

Researchers have developed a simple geometrical method to add weight to the idea that ours is a flat, dark-energy-rich Universe.

"Keeping the show on the road" may be all governments can hope for at next week's UN climate talks, the UK admits.

Pro and anti-hunting groups debate the law, after the UK's first double conviction under the controversial hunting act.

Scientists discover that army ants are creators of whole worlds, not destroyers