The rare sighting of an octopus riding on top of a shark was shared by scientists with the University of Auckland after it ...

Blanket octopus pairs are some of the undersea world’s oddest couples. What’s so startling is the size difference: Males are about the size of a walnut—less than an inch long—but some ...

The Dumbo octopus is an elusive cephalopod that gets its name from its large ear-like fins, which resemble those of the lovable Disney elephant. But there's still lots we don't know about these ...

Add in the octopus’s small size (generally around eight inches), relatively short arms, bell-shaped body, pale coloring, and tendency to hover over the seafloor, and you’ve got a cephalopod ...