Scientists have discovered honeybees can understand the concept of zero, putting them in an elite club of clever animals that can grasp the abstract mathematical notion of nothing.
Tiny fish called Trinidadian guppies turn their eyes black to warn other fish when they are feeling aggressive, new research shows.
Imagine having superhuman hearing. You're at a noisy, cocktail party and yet your ears can detect normally inaudible sounds made by your friends' muscles as they lean in to dish the latest gossip. But, unlike normal hearing, ...
A deadly fungus responsible for the devastation of amphibian populations around the world may have originated in East Asia, new research has found.