A woman swimming at a beach in Sydney, Australia was bitten by a blue-ringed octopus on Thursday, which is one of the most deadly marine animals in the world.

Blue-ringed octopuses carry a killer concoction called tetrodotoxin (TTX), a potent neurotoxin that can paralyze living things, including humans. Tetrodotoxin is most famously known from pufferfish — ...

A relaxing stroll along Sydney Harbour could have turned deadly for Jesse Donnison and his dog Otto after a brush with one of Australia’s most venomous sea creatures.

A woman swimming near a beach near Sydney, Australia was hospitalized after reports say she was bitten twice by a venomous blue ringed octopus.

A woman swimming near a beach near Sydney, Australia was taken to the hospital Thursday afternoon after reports say she was bitten twice by a venomous blue ringed octopus.

Our oceans are filled with fascinating marine life. Of course, they're not all harmless. Avoid these venomous creatures while ...

A woman in Australia was rushed to the hospital on Thursday after she was bitten by a highly venomous octopus. The unnamed woman in her 30s was swimming at Chinamans Beach in New South Wales when ...

A snorkeler in Western Australia found a blue-ringed octopus while cleaning his gear after going snorkeling. The creatures are deadly.

Looks can be deceiving. That's definitely true for the blue-ringed octopus. It's tiny, stunningly beautiful and looks harmless. Yet its venom could kill 26 men in minutes.

A woman swimming near a beach near Sydney, Australia was taken to the hospital Thursday afternoon after reports say she was bitten twice by a venomous blue ringed octopus.