A deep-sea octopus nursery, just the third known to exist, has been discovered off the coast of Costa Rica, according to the Schmidt Ocean Institute.

The deep-sea Dumbo octopus was spotted a mile below the surface of the Pacific Ocean, close by an unnamed seamount in the Papahānaumokuākea Marine National Monument.

The other known octopus nursery is about 3,200 meters (2 miles) below the ocean surface on the Davidson Seamount off the coast of Monterey, California, where thousands of octopuses cluster around ...

A petite octopus propels itself through the deep sea. Gif: Schmidt Ocean Institute. Three of the new species are still being described by the team; the only species imaged and named in a recent ...

The Ocean Exploration Trust's Nautilus mission ran into the octopus while live-streaming. Rare footage shows an unusual octopus appearing in the deep sea, more than 5,500 feet underwater.

Rare Ghostly-Looking 'Dumbo' Octopus Spotted on Deep Sea Camera. Researchers with the Ocean Exploration Trust were exploring the ocean floor of the Papahānaumokuākea Marine National Monument ...

Call it extreme parenting: Scientists announced the discovery of a deep sea octopus mom that faithfully guarded the same clutch of eggs for a record-breaking 4-1/2 years.

From worms with squid-like tentacles to fish with teeth on their tongues, here are some of the most alien-looking creatures ...

Mystery of octopus garden in ocean’s midnight zone solved by scientists By Katie Hunt, CNN ... One deep-sea octopus species broods its eggs for four and a half years.

As researchers searched the ocean deep off the coast of California nearly five years ago, they came across something unexpected. The researchers were exploring the foothills of the Davidson ...

Deep-sea octopus eggs can take five years to develop in the freezing temperatures of the ocean. However, the incubation period could be significantly reduced by warmer waters. Read more ...

HONOLULU (CBS/AP) -- Scientists say they have discovered what might be a new species of octopus while searching the Pacific Ocean floor near the Hawaiian Islands. On Feb. 27, a team found a small ...