The biggest fish in the sea, a whale shark ... But it is a shark—a kind of fish with cartilage rather than bone for a skeleton—a slow-moving, polka-dotted, deep-diving shark.

A colossal squid has been caught on camera for the first time in the deep sea by an international team of researchers ...

Most of what we know about the elusive creature comes from research on its remains found in whale stomachs, but scientists ...

Two research expeditions have captured the first footage of two squid species — a colossal squid and a glacial glass squid — swimming in the deep sea.

Researchers recently captured the first live footage of a colossal quid in its natural habitat, thousands of feet under the ...

The mysterious creature was filmed in the ocean near Antarctica. Scientists documented the juvenile, which could grow to more than 1,000 pounds.

The deepstaria jelly is a creature unlike any other that is found in one of the deepest parts of the ocean. It is known for ...