At first glance, the blue-ringed octopus looks perfectly innocuous. Its psychedelic coloring and pint-sized packaging make it seem more adorable than alarming. But don’t let its cuddly exterior fool you: this tiny octopus can kill you. And quickly.
Native to the Pacific Ocean, the blue-ringed octopus can be found in the soft, sandy bottom of shallow tide pools and coral reefs. When not seeking food or a mate, blue-ringed octopuses often hide in crevices, shells or marine debris. If you catch them outside of their cozy hiding spots, it’s easy to see how the animal gets its name: when threatened, bright blue rings appear all over its body as a warning signal to potential predators.