A unique fjord in Chilean Patagonia gives scientists a chance to unlock the reproductive secrets of cold-water corals that ...

Careful illumination helps showcase a bluebottle’s constituent bits, both above and below the water’s surface.

One Great Shot: Are You Ready for This, Jelly? During a nighttime dive, a veteran underwater photographer captured a tiny fish’s cunning effort to find a safe spot in a dark sea.

A massive environmental calamity rocked the ancient Mediterranean. It took millions of years for the ecosystem to recover.