Male blue-lined octopuses inject a powerful neurotoxin into the hearts of females before mating to avoid being eaten, according to a new study. The males have evolved to use a venom called ...

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 ...

The blue ring octopus is a small animal with a lethal secret. Though small, this poisonous creature carries a powerful toxin that can kill a human being within minutes. What is even more frightening ...

Male blue-lined octopi (Hapalochlaena fasciata) have been found to use venom on their sexual partners, as well as for the usual reasons of defense against predators and subduing prey. Killing the ...

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 ...

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 ...

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 ...