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

14K views · 654 reactions | Have you ever seen a blue-ringed octopus while diving?  Despite their innocent appearance, they are among the most venomous marine species on the planet.   IG user 'kenzokiren' Lembeh, Indonesia | PADI | Facebook

Here's an amazing up close look at the famed blue-ringed octopus! Is this on your to-see list? 📷: @julia.waterchild (IG) | SSI

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

For weeks, Nat Geo photographer David Liittschwager joined researchers to study octopuses, learning all about their unique characteristics. From their ability to change their skin color to their curious minds, find out what David discovered at https://on.natgeo.com/4aEMhG2 🎥: David Liittschwager | 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

957K views · 3.1K reactions | Dear tourists, the blue-ringed octopus is one of the most deadly creatures in Australia, it carries enough venom to kill 26 adults within minutes - definitely don't do this! | SBS News | Facebook