A venomous Blue Ringed Octopus clings to a stone,clearly showing the bright circular rings as a warning sign, Malapascua,Philippines Stock Photo - Alamy
Divers and Critters - Anilao Diving Underwater Photography,Anilao Batangas.
Blue ringed octopus (Hapalochlaena lunulata) displaying as it moves across the seabed. Dauin, Dumaguete, Negros, Philippines. Bohol Sea, Tropical West Pacific Ocean Stock Photo - Alamy
Blue Ring Octopus at Batangas Channel, Philippines by Rafi Amar