You’ve probably seen enough nature documentaries to know that octopuses are basically the closest thing we have to aliens on […] ...

A new species of flapjack octopus, with massive eyes and blood-red tentacles, has been discovered from a deep-sea canyon off the coast of Australia. The new species has been named Opisthoteuthis ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Go diving into the intertidal waters of the Great Barrier ...

Brazilian reef octopuses, like other types of cephalopods, defend themselves against predators by inking and extending their mantles. Paul Asman and Jill Lenoble via Flickr under CC BY 2.0 Costello ...

Nine brains, blue blood, instant camouflage: It’s no surprise that octopuses capture our interest and our imaginations. Science-fiction creators, in particular, have been inspired by these tentacled ...