Blue-ringed octopuses carry a killer concoction called tetrodotoxin (TTX), a potent neurotoxin that can paralyze living things, including humans. Tetrodotoxin is most famously known from pufferfish — ...

But for Octopus briareus and many other octopus species, the story has a nasty ending. After a mother octopus lays a clutch ...

A Casper octopus photographed deep underwater. Discovered in 2016, this is the first time this rare octopus species—yet to receive its scientific name—has been seen in the Southern Pacific.

Discover eleven octopus species that highlight the beauty and diversity of the Octopoda order, from the giant Pacific octopus to the mimic octopus.

Glance at the news and it is impossible to miss our entanglements and codependence with innumerable organisms and creatures.

A new study found that some members of an octopus species hunt cooperatively in groups with fish. Video shows octopuses punching their companion fish to keep them on task and contributing to the ...

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 photo of a courageous mother lemur with a baby on her back, taking a harrowing jump in a ravine, won the California ...

Scientists using ROV found octopus with long arms, large eyes on ocean floor and discovered new species: Feitian’s Dumbo octopus, study said & photos show.

In most species, chromatophores help an octopus change color to blend in with its surroundings. On the glass octopus, this could be what triggers its skin to be translucent.

Scientists using ROV found octopus with long arms, large eyes on ocean floor and discovered new species: Feitian’s Dumbo octopus, study said & photos show.

Scientists using ROV found octopus with long arms, large eyes on ocean floor and discovered new species: Feitian’s Dumbo octopus, study said & photos show.