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

Did somebody say glow up? 🐙✨ This blue-ringed octopus can trigger muscles to dial up the color in her rings. With thousands of light-reflecting cells, she’s quite the eerie enchantress 🔮 #SecretsOfTheOctopus is now streaming on Disney and Hulu. | National Geographic Animals

21K views · 271 reactions | What happens when a fish tries to eat a Blue-ringed Octopus? | Ocean Imaging by Stefan Andrews | Facebook

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