The blue-ringed octopus lives in the waters of New South Wales, Australia.

Blue-ringed octopus, belonging to the octopus family, commonly known as the blue-ringed octopus, leopard octopus is widely distributed in the Pacific Ocean waters between Japan and Australia, and is a very small octopus species, with an arm span of no more than 15 centimeters. It can feed on small fish, crabs, shrimp and crustaceans, and will paralyze its prey with a very strong toxin (tetrodotoxin).

In the ocean, the blue-ringed octopus belongs to one of the highly toxic creatures. However, this octopus does not actively attack humans unless they are greatly threatened. Most attacks on humans occur when the blue-ringed octopus is lifted from the water or stepped on. The flame squid, another cephalopod, also makes toxins similar to those of the blue-ringed octopus.

Life habits of the blue-ringed octopus:

1. Environment: The blue-ringed octopus is a warmth-loving animal, with a minimum water temperature that can't be lower than 7 degrees Celsius, and is most at home hiding in a variety of hollow containers, where the dark rings on its body and claws emit a brilliant blue light when it encounters danger.

2, food: blue-ringed octopus is a carnivorous animal, mainly to valve gill animals and shrimp, crabs and other crustaceans for food, often with lobsters and lobsters to fight you to death, the purpose is to compete for astaxanthin, astaxanthin is to ensure that the blue-ringed octopus is necessary to ensure the survival of the conditions.

3, reproduction: blue-ringed octopus dioecious animals, males have a specialization of the intertwined wrists, used to put the sperm packet directly into the female's coat cavity, female spawning under the rocks or in the hole, the female guarding the eggs in the incubation period next to the eggs, the larvae 4 to 8 weeks hatch.