The Japan Trench, a vast tectonic chasm along the Pacific Ring of Fire, is known for its extreme depth—stretching 5 miles ...

A diver named Tatiana Mendes got to experience a breathtaking once-in-a-lifetime moment recently while swimming in the Red ...

Masters of disguise, the leafy sea dragon is one of the trickier ocean critters to spot. Here's why these mythical-looking animals dazzle us—and how to take the perfect photo.

How do you make a deep-sea octopus feel at home? Aquatron aquarist Nayla Sernowsky has learned a lot about cephalopod comforts — insights that will help marine creatures make a successful debut at the ...

For years, scientific divers at a research station in the Mediterranean Sea had a problem: at some point in every field season, local fish would follow them and steal food intended as experimental ...

A rare, deep-sea fish washed ashore in Carlsbad last week and has since been turned over to biologists at the Scripps ...