The blanket octopus uses venomous man o’ war tentacles as weapons, doubling its reach and surviving in the open ocean.

A mother octopus broods her eggs near a small outcrop of rock unofficially called El Dorado Hill. When a female octopus broods (which can be a timespan of multiple years), she does not eat and dies ...

Add Yahoo as a preferred source to see more of our stories on Google. An Octopus cyanea hunts with a blacktip grouper on one side and a blue goatfish on the other. (Eduardo Sampaio and Simon Gingins) ...

Deep-sea creatures often look more like science fiction monsters than marine animals. The glass octopus is one such animal. The Schmidt Ocean Institute captured this footage of the incredibly rare ...

Octopuses already exist in a strange corner of the animal world, with soft bodies, problem-solving brains, and the ability to ...

Scientists have discovered at least four new species of octopus in the deep waters of a 100-square-mile area near Costa Rica, officials from the Schmidt Ocean Institute said on Tuesday. An ...

Octopuses don’t always hunt alone — but their partners aren’t who you’d expect. A new study shows that some members of the species Octopus cyanea maraud around the seafloor in hunting groups with fish ...

On certain remote shores in northern Australia, the line between sea and land is not as firm as it looks. When the tide ...

Octopus Numbers Explode Off UK Coast in a Comeback Not Seen Since the 1950s ...

Watching an octopus punch an annoying fish is hugely satisfying to frustrated humans. And other animals do the ...