See how the blue-ringed octopus warns predators away—and paralyzes prey. | National Geographic

Blue-ringed octopuses have a beak-like mouth with a radula for feeding. They inject their venom through a sharp, parrot-like beak located in the center of their tentacles. #octopus #ocean #travel | Critter Hunter

The blue-ringed octopus delivers quite a warning! #SecretsOfTheOctopus, narrated by Paul Rudd, is now streaming on Disney and Hulu. | National Geographic TV

Meet the blue-ringed octopus, one of the ocean's most stunning yet deadly creatures 🐙💙 Despite its small size, this tiny wonder carries enough venom to paralyze 26 humans within minutes! Remember, beauty in the ocean comes with a warning—always admire from a distance. 🌊 Video by Jacobguy.media | Ocean Conservation Research - OCR

This blue ring octopus changed my mind about his entire species. It’s important to remember blue rings aren’t pets and shouldn’t be kept or imported for captivity. Once they are brought in they can never be released back into the wild. Most of the time that means a certain pre-mature death because he requires a very specialized tank that is very different than the average fish tank. I was reluctant to take in a blue ring bc of how dangerous they are but I am so grateful I did. #petoctopus #octop