The blue-ringed octopus belongs to the octopus family, commonly known as the blue-ringed octopus. Leopard octopus is widely distributed in Taiping waters between Japan and Australia. It is a very small octopus species with an arm span of less than 15 cm. Can feed small fish, crabs, shrimps and crustaceans, and paralyze prey with strong toxins. In the ocean, the blue-ringed octopus is one of the highly toxic creatures, and being bitten by this small octopus will lead to death. But this octopus will not take the initiative to attack humans unless it is greatly threatened.