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

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

The blue-ringed octopus knows exactly how to scare off potential threats like the stingray. Learn more about these animals in #SecretsOfTheOctopus, narrated by Paul Rudd, now streaming on Disney and Hulu. | National Geographic