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

Filmed this Blue Ring Octopus in Anilao Philippines. This tiny cephalopod has enough venom to kill 26 people. It is about the size of your thumb. It flashes its blue rings when it feels threatened. Once I shined my light on it, it started flashing. Such a cool animal! | OceanShutter

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

The glow of a blue-ringed octopus comes from their iridophores, light-reflecting structures arranged to shimmer blue when the muscles above them relax. 🌟 📺: Australian Geographic Extraordinary Animals now streaming for free via SBS On Demand #ausgeo #blueringedoctopus #octopus #deadlyanimals #marine #underwater | Australian Geographic