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Two well known examples are the lesser southern blue ringed octopuses hapalochlaena maculosa hoyle 1883 and the greater blue ringed octopuses hapalochlaena lunulata quoy and gaimard 1832.
Blue ringed octopus size. The size of a blue ringed octopus is 10 to 20 cm 5 to 8 in. The blue ringed octopus is an extremely venomous animal known for the bright iridescent blue rings it displays when threatened. The brown patches on blue ringed octopuses will. At first glance this tiny octopus looks perfectly innocuous.
Its psychedelic coloring and pint sized packaging make it seem more adorable than alarming. Clever small and deadly. A blue ringed octopus holds enough poison that is potent enough to kill 26 adult humans within minutes. Blue ringed octopuses comprising the genus hapalochlaena are four highly venomous species of octopus that are found in tide pools and coral reefs in the pacific and indian oceans from japan to australia.
The toxin in the venom from the salivary. The small octopuses are common in tropical and subtropical coral reefs and tide pools of the pacific and indian oceans ranging from southern japan to australia. It has the yellowish skin with blue and black rings. They eat small crustaceans including.
It can grow from 5 to 8 inches or 12 to 20 inches. The mechanism for poisoning its victim is not yet understood clearly. The blue ringed octopus is only about 20cm 8in long but it is one of the most venomous animals in the ocean. Although the blue ringed octopus bite contains the powerful neurotoxin tetrodotoxin the animal is docile.
The blue ringed octopus is one of the oceans most interesting creatures. Lets find out the color of blue ringed octopus. It is found in the indo pacific ocean area and is especially common to southern australia. They can be identified by their yellowish skin and characteristic blue and black rings that change color dramatically when the animal is threatened.
Its bite causes paralysis loss of feeling in the muscles and can easily kill an adult human. Facts about blue ringed octopus 3. There are four different species of the venomous blue ringed octopuses. The blue ringed octopus hapalochlaena maculosa which is less than 5 inches in diameter has blue rings on its body and luminous tentacles figure 42 3.
The bite is so deadly because the octopus has toxic saliva spit. Even though this marine animal is dangerous it has a small size. The greater blue ringed octopus is despite its vernacular name is a small octopus whose size does not exceed 10 centimeters arms included for an average weight of 80 grams. Either the poison is expelled through the saliva into the water or else the octopus itself bites its prey or predator.
The common name comes from the bright blue rings that appear. The octopus grabs prey such as crustaceans and fish and bites them to inject the venom. 34 it is not an aggressive animal and when contact occurs it is often accidental. There are at least 10 species of tiny blue ringed octopuses which ironically for their size are the most deadly of all cephalopods.
Sometimes the octopus just. Facts about blue ringed octopus.
