Scientific divers have navigated a series of treacherous dives more than 330 feet deep in an attempt to unravel the mysteries of deep ocean reefs. They’re finding new species — and evidence of both cl ...

The deep sea around Antarctica just got a whole lot weirder as researchers have discovered at least 30 previously unknown ...

A spherical sea sponge discovered in Antarctica, Carnivorous cladorhizid, is a carnivore, trapping and devouring live animals ...

Halalaimus is a microscopic nematode genus commonly found in sediment on the seafloor. It lives 1–5 cm below the sediment ...

Machines mining minerals in the deep ocean have been found to cause significant damage to life on the seabed, scientists ...

The Metals Company wants to be the first firm to commercially mine the seafloor. The study it funded suggests that mining ...

Cephalopods—the class of animals that comprises octopuses and squids—are ubiquitous throughout the ocean, including in the ...

Glowing sea animals use bioluminescence powered by luciferin to communicate, attract prey and defend themselves, turning the ...

More than a dozen cold-stunned sea turtles were recently transferred from the New England Aquarium in Boston to Mystic ...

From worms with squid-like tentacles to fish with teeth on their tongues, here are some of the most alien-looking creatures in the deep ocean. When you purchase through links on our site, we may earn ...

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.

Sea urchin stings are painful, but rarely deadly. Learn when venom is dangerous, which species are worst, and what to do if stung.