The blue-ringed octopus is a small but potent predator, recognisable by the iridescent blue circles that appear on its body when it feels threatened. Found in rocky crevices and coral gardens across tropical Pacific and Indian Ocean waters, this octopus hunts small crustaceans and fish. Despite its diminutive size, it carries enough venom to be dangerous to divers; treat any sighting with respect and keep hands clear.
Most likely to be seen at
Sites where its range and habitat make it likely — not yet confirmed by a logged sighting.