Researchers at the Monterey Bay Aquarium Research Institute captured 4K footage of a giant phantom jellyfish, Stygiomedusa ...

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 ...

Moray eels are generally shy and like to spend much of their time hidden away during the day. ©valda butterworth/Shutterstock.com Deep-sea diving can be an ...

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 ...

(KRON) — A diver in Monterey Bay recently had a close encounter with a deep-sea fish normally found at depths of 3,000 feet, NOAA Fisheries confirmed Wednesday. Diver Ted Judah spotted a young king-of ...

The bumpy snailfish, discovered 10,000 feet down off the coast of California, shows that not all denizens of the abyss are frightening. By Alexa Robles-Gil For an animal, surviving in the ocean’s ...

The deep sea is cold, dark and under immense pressure. Yet life has found a way to prevail there, in the form of some of Earth's strangest creatures. Since deep-sea critters have adapted to near ...

Mesopelagic fish, long overlooked in ocean chemistry, are now proven to excrete carbonate minerals much like their shallow-water counterparts—despite living in dark, high-pressure depths. Using the ...

The deep sea, covering approximately 65% of Earth's surface, has long been considered a biological desert. In this extreme environment—particularly in the hadal zone at depths greater than 6,000 ...