When most of us picture the ocean, we imagine turquoise waves, colorful reefs, and shoals of darting fish. But that’s only ...

The deep sea is home to some of the weirdest creatures on Earth, from ghostly elder fish to carnivorous harp sponges.

The bumpy snailfish, discovered 10,000 feet down off the coast of California, shows that not all denizens of the abyss are ...

A mysterious group of deep-sea whales was just spotted near a remote archipelago in the Atlantic Ocean — for the first time in years. The marine creatures — Gervais’ beaked whales — were seen off the ...

Thousands of meters below the ocean's surface lurk some gigantic creatures, much larger than their shallow-water brethren. Scientists have a few hunches for why this happens, but the debate continues.