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 ...

Juan-Paul 'JP' Kalman thought he was picking up an oyster shell at Balmoral Beach when a venomous blue-ringed octopus wrapped ...

Blue blood may look alien, but it’s one of evolution’s most elegant solutions to life in extreme environments. Here’s how evolution rewrote the rules of oxygen transport.

Dive into the enchanting world of the octopus, an extraordinary marine wonder with eight flexible arms and a unique ...

The cephalopods were found near a small outcrop of rock called El Dorado Hill. Scientists have discovered at least four new species of octopus in the deep waters of a 100-square-mile area near Costa ...