Water and air pose completely different challenges to animals on a number of levels.

The intricate, hidden processes that sustain coral life are being revealed through a new microscope developed by scientists ...

If you have ever looked closely into a rockpool along the U.K. coastline, you may have been lucky enough to find a tiny ...

Sacoglossan sea slugs, discreet inhabitants of coral reefs, hide an astonishing secret. Unlike other animals, they can "steal ...