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

Don’t mess with the blue-ringed octopus. The golf ball-sized cephalopod, which lives in the Pacific Ocean along shallow shores, carries a neurotoxin that can kill an adult human within minutes. But ...

With a split-second muscle contraction, the greater blue-ringed octopus can change the size and color of the namesake patterns on its skin for purposes of deception, camouflage and signaling.