Blue-ringed octopuses carry a killer concoction called tetrodotoxin (TTX), a potent neurotoxin that can paralyze living ...

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.

TikTok of Woman Unknowingly Holding Venomous Octopus Goes Viral: 'Cheers for Still Being Alive' "There were about three of us passing him around," the TikTok user said about handling the blue ...

The blue-ringed octopus appears grey or beige with light brown patches when it is at rest, but when agitated its 50 or 60 bright blue rings appear and pulsate with color, as a warning.

The TTX that a blue-ringed octopus injects is so deadly that 1 milligram of it can kill a human. It's one of the most potent toxins on earth, and there is no antidote.

In a 2008 study, for example, a 4-year-old boy survived a blue-ringed octopus bite. He received intubation and oxygen from a ventilator within 30 minutes of being bitten.

Picture an octopus that could be deadly to humans. You’re probably thinking of a large creature, and not one that is the size of your palm. But indeed, that’s the blue-ringed octopus, one of several ...

There have only been three confirmed deaths from blue-ringed octopus bites—two in Australia and one in Singapore—however, some argue that this number is as high as 11.

The blue-ringed octopus is tiny and gorgeous — but, as we Australians know, those dainty blue iridescent rings are a warning sign.

Although the blue-ringed octopus has some resistance to its own toxins, it's not completely immune. So the male can temporarily paralyze larger females with venom long enough to transfer a sperm ...

There are four species of blue-ringed octopus and each one contains tetrodotoxin, which is one of the most deadly toxins in the world. (Image credit: Khaichuin Sim via Getty Images) An Australian ...