The nearly-see-through creatures were intertwined, which could mean they were mating. Or fighting. It was taken on an undersea expedition, which may have uncovered four new octopus species. A deep-sea ...

This rarely seen glass octopus bared all recently — even a view of its innards — when an underwater robot filmed it ...

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 ...

Deep-sea “hot tubs” may help octopus eggs hatch faster, startled scientists found after discovering a deep-sea nesting site off the California coast packed with thousands of the normally solitary ...

What appeared to be tentacles washed up on an Aberdeenshire beach are the remains of a deep-sea creature called a seven-arm octopus, say experts. A local member of the public spotted the arms with ...