The blue-ringed octopus is the only octopus to have a lethal toxin that can kill humans. Read here to learn about potential ...

Some of the most dangerous creatures on the planet are not the ones with the sharpest teeth or the largest bodies. They are, in many cases, small enough to sit on a fingernail. The blue-ringed octopus ...

A teenager in Australia nearly died from a poison octopus' bite after he pocketed a seaside souvenir. 18-year-old Jacob Ettington was hunting for shells at Shoalwater Beach, near Perth, local outlet ...

An Australian teen nearly died when he was bitten by a poisonous blue-ringed octopus hiding in a shell he scooped out of the ocean to show his niece. Jacob Eggington, 18, was swimming and looking for ...

The blue-ringed octopus is small, but its venom is powerful enough to kill multiple humans in a short time. It delivers neurotoxins that can cause rapid paralysis, making it difficult or impossible to ...

Mat Rogerson found a deadly blue-ringed octopus on his snorkeling gear in Australia, according to a Facebook post. Screengrab from Facebook Mat Rogerson regularly goes snorkeling off the coast of ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Go diving into the intertidal waters of the Great Barrier ...

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 ...