The blue ringed octopus is of 10 species and are the most deadly. Their common name comes from the bright blue rings that measure less than 2mm in diameter when alarmed. The body is 5cm long and the tentacles are 10cm. The mantle is usually rough in appearance covered by wrinkles.
While resting, the background colour is a brownish colour with patches. Their blue rings are not visible at rest and they have like 50 to 60 blue rings covering the dorsal.
They are found in the temperate waters of southern Australia. They feed on small crabs, shrimp, lobster, etc. They secrete two types of venom from two separate venom glands. One of the venom is used for hunting and the second one which is extremely toxic is used as self defence against predators. The venom is secreted into the octopus's saliva and poisons it's victim and once the predator is dead, the octopus consumes it with its beak like mouth.
They reproduce sexually, the male approaches the female and begins to caress her with its modified arm called hectocotylus, the male then climbs on the female's back and deposit spermatophores into the female's oviduct by inserting the hectocotylus into the female's mantle.
The female lays eggs and carries them under her tentacles until they hatch, the female then dies as she's unable to eat while carrying her egg. The male dies after mating.
Blue ringed octopus are not aggressive and avoids danger by blending into their surroundings. Human beings have been injured by stepping on it.
They are found in the temperate waters of southern Australia. They feed on small crabs, shrimp, lobster, etc. They secrete two types of venom from two separate venom glands. One of the venom is used for hunting and the second one which is extremely toxic is used as self defence against predators. The venom is secreted into the octopus's saliva and poisons it's victim and once the predator is dead, the octopus consumes it with its beak like mouth.
They reproduce sexually, the male approaches the female and begins to caress her with its modified arm called hectocotylus, the male then climbs on the female's back and deposit spermatophores into the female's oviduct by inserting the hectocotylus into the female's mantle.
The female lays eggs and carries them under her tentacles until they hatch, the female then dies as she's unable to eat while carrying her egg. The male dies after mating.
Blue ringed octopus are not aggressive and avoids danger by blending into their surroundings. Human beings have been injured by stepping on it.
