Researchers studying a deep-sea octopus called Muusoctopus robustus have found thousands of the animals congregating at hydrothermal springs near an underwater mountain off California, raising fresh ...

With ear-like fins that flap gracefully through the water, the Dumbo octopus in this YouTube video looks like it waltzed straight out of an animation studio. But don’t let their cute facade fool you; ...

When a blanket octopus swims, it creates a kaleidoscope of colors twirling underwater. It’s a rainbow of beauty as it glides through the sea. It’s gorgeous, and it’s almost never seen by humans in ...

Octopus mothers undertake an intense maternal journey. After laying thousands of eggs, they stop eating and dedicate ...

Researchers caught a glimpse at what they dubbed a "sharktopus" -- a bizarre sighting of the tentacled creature clinging to the back of a shark. Youtube/University of Auckland Forget “sharknado” — ...