![Ocean Conservancy on Twitter: "#DYK: The blue-ringed octopus packs enough venom to kill 26 humans within minutes. https://t.co/3PSFhc9LOb https://t.co/T6AIdfi1eA" / Twitter Ocean Conservancy on Twitter: "#DYK: The blue-ringed octopus packs enough venom to kill 26 humans within minutes. https://t.co/3PSFhc9LOb https://t.co/T6AIdfi1eA" / Twitter](https://pbs.twimg.com/media/C2pChdCWEAEtS0n.jpg)
Ocean Conservancy on Twitter: "#DYK: The blue-ringed octopus packs enough venom to kill 26 humans within minutes. https://t.co/3PSFhc9LOb https://t.co/T6AIdfi1eA" / Twitter
![Greater blue-ringed octopus | Churaumi Fish Encyclopedia | Okinawa Churaumi Aquarium - For the next generation to inherit; the beautiful seas of Okinawa. - Greater blue-ringed octopus | Churaumi Fish Encyclopedia | Okinawa Churaumi Aquarium - For the next generation to inherit; the beautiful seas of Okinawa. -](https://churaumi.okinawa/userfiles/fish_images/sanngo_musekitsui/oomarumonndakonobinobi-resize.jpg)
Greater blue-ringed octopus | Churaumi Fish Encyclopedia | Okinawa Churaumi Aquarium - For the next generation to inherit; the beautiful seas of Okinawa. -
![National Aquarium on Twitter: "The greater blue-ringed octopus is only about 4 inches across, but it holds enough venom to kill as many as 26 people... within minutes. Look, but definitely don't National Aquarium on Twitter: "The greater blue-ringed octopus is only about 4 inches across, but it holds enough venom to kill as many as 26 people... within minutes. Look, but definitely don't](https://pbs.twimg.com/media/EGYVMRRWwAAyUgf.jpg)
National Aquarium on Twitter: "The greater blue-ringed octopus is only about 4 inches across, but it holds enough venom to kill as many as 26 people... within minutes. Look, but definitely don't
![Toxins | Free Full-Text | Toxicity and Toxin Composition of the Greater Blue -Ringed Octopus Hapalochlaena lunulata from Ishigaki Island, Okinawa Prefecture, Japan Toxins | Free Full-Text | Toxicity and Toxin Composition of the Greater Blue -Ringed Octopus Hapalochlaena lunulata from Ishigaki Island, Okinawa Prefecture, Japan](https://pub.mdpi-res.com/toxins/toxins-11-00245/article_deploy/html/images/toxins-11-00245-g003.png?1571458009)