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 ...

Along the rocky shores of eastern Australia, a small brown octopus is unassuming as it blends in with its surroundings. When the octopus is scared or hungry, however, it becomes one of the most ...

During mating, some male octopuses inject females with their potent venom to paralyse them – and avoid being eaten by their mates. Typically, animals use venom to kill prey or defend themselves from ...

Humans are not the only species who practice 'safe sex', although this means something quite different for one species of octopus. Marine biologists from Australia have revealed that male-blue lined ...