It’s an octopus-eat-octopus world. Scientists have discovered that when mating, male blue-lined octopuses will inject a powerful, incapacitating neurotoxin into the hearts of female octopuses — to ...

When they're alarmed, blue-lined octopuses display iridescent blue rings on their arms to ward off approaching predators. Totti via Wikimedia Commons under CC BY-SA 4.0 Animals have evolved many ...

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 ...

An Australian teenager had a lucky escape after being bitten by one of the world's most toxic animals, a blue-ringed octopus, after accidentally picking up the deadly cephalopod hiding in a shell. But ...

Richard Blyth was fishing by the North Shore pier this week when he noticed the electric blue spots of the poisonous octopus. “I was a bit under the size of a tennis ball,” he said. Blue-ringed ...

A fisherman got the surprise of his life when he spotted a blue-ringed octopus clinging to rocks in the city’s north. Richard Blyth was fishing by the North Shore pier this week when he noticed the ...