Octopuses have gotten a reputation for being cunning camouflagers and intelligent creatures. But some are known for a more ominous reason: They're deadly. One group — the blue-ringed octopus (genus ...

Jenny Evans / Getty Images Octopuses are capable of sophisticated tasks, from solving puzzles to decorating their dens to remembering people's faces. So when a company in Spain announced that it ...

Normally, the blue-ringed octopus is brown or cream in colour, blending easily with rocks and sand. But when disturbed, it ...

An octopus named Inky, for example, made a notorious escape recently from the National Aquarium of New Zealand, exiting his enclosure and slithering into a floor drain and, apparently, out to sea.

An Octopus cyanea hunts with a blacktip grouper on one side and a blue goatfish on the other. Octopuses don’t always hunt alone — but their partners aren’t who you’d expect. A new study shows that ...