Marine scientists have captured images of a mysterious tentacled creature that lives more than 3 miles below the ocean surface.

"In each burrow move, the animal disappears from view by retreating into its burrow, then a small mound appears a short ...

On May 5, a breathtaking exhibit, “Liquid Realms: an Underwater Photography Showcase” will greet visitors at the Edward Jones ...

And unlike the more mainstream animals under the sea — seahorses, sharks, and even deep sea anglerfish — one cool member of the aquatic community isn’t talked about or printed on baby clothes.

Researchers used time-lapse photography ... lives of creatures like Iosactis vagabunda are finally beginning to come into focus. This isn’t just a glimpse into the life of a sea anemone ...

But deceased specimens and scattershot footage at the sea surface can only tell you so much. To properly understand the lives of these fascinating animals, scientists needed to spot one swimming ...

A colossal squid is one of the largest and most mysterious creatures in the ocean. It is a soft-bodied sea animal, similar to an octopus but longer and bulkier. It has a tube-shaped body ...