Animals that defy every visual expectation of what a living organism should look like are turning up on ROV cameras in the ...

When photographer Jialing Cai plunged into the ocean in the dead of night, she found creatures of the deep had risen up to ...

Cruising at a depth of 8,336 meters (over 27,000 feet) just above the seabed, a young snailfish has become the deepest fish ever filmed by scientists during a probe into the abyss of the northern ...

Scientists found more than 7,000 microbes in the Mariana Trench, revealing unexpected biodiversity in Earth's deepest ocean ...

These three fish are freaks, phantoms and mysteries of the deep. Here’s what we’ve learned from the rare glimpses we’ve had of their lives. The deep sea is one of Earth’s final frontiers. Given its ...

Chilean devil rays swim in the Atlantic Ocean near the Azores. Reinhard Dirscherl / ullstein bild via Getty Images There’s only one word for it: indescribable. “It’s one of those awesome experiences ...

A glass squid filmed at 1,725 meters in the Colorado-Rawson submarine canyon. (ROV SuBastian/Schmidt Ocean Institute, CC ...

A new study offers the first direct evidence that deep-dwelling mesopelagic fish, which account for up to 94% of global fish biomass, excrete carbonate minerals at rates comparable to shallow-water ...