A never-before-seen predatory crustacean that feeds on other smaller creatures in the hadal zone was discovered in the Atacama Trench at a depth of 25,900 feet.

Octopus filmed firing stones from her siphon from inside a clam shell like a sniper in never-before-seen behavior captured for the Netflix series Our Oceans.

For the first time ever, marine biologists have measured how much energy octopuses really need to change color — and it's a lot.

Check out some of the best photos from 2024's Ocean Photographer of the Year competition.

Researchers exploring the seafloor off the coast of Chile recently captured mesmerizing footage of a flying spaghetti monster — a carnivorous, colonial creature with countless milky-white arms.

A beautiful and rare "cotton candy" lobster caught in New Hampshire may be due to a combination of genetics and diet.

Amazing new footage shows a rare Deepstaria jellyfish with a resident isopod in its bell off the coast of Chile.

Unusual octopus mating session captured in rare and comical footage filmed off the Indonesian island of Bunaken for new National Geographic show.

The oldest-known sex chromosome emerged in octopus and squid between 455 million and 248 million years ago — 180 million years earlier than the previous record-holder, scientists have discovered.

Scientists have discovered a new species, related to the roly poly bug, that plays an important role in keeping the ocean healthy.