Add Yahoo as a preferred source to see more of our stories on Google. The elusive seven-armed blob octopus -- yes, that's a real creature -- has been caught on camera for just the fourth time in 40 ...

Researchers with the Ocean Exploration Trust were exploring the ocean floor of the Papahānaumokuākea Marine National Monument when they found it A livestream of a deep sea expedition caught a ghostly ...

One species was found brooding eggs near low-temperature hydrothermal vents, a rare sight that could unlock new information on deep-sea cephalopods Christian Thorsberg - Correspondent A mother "Dorado ...