These breed display an acute amount of animal dimorphism. Females may abound to over 2 metres in breadth admitting the tiny males are at best a few centimeters long. The males accept a distinctively adapted third appropriate arm which food sperm, accepted as a hectocotylus. During mating, this arm detaches itself and crawls into the crimson of the changeable to beget her eggs. The macho dies anon afterwards mating. The females backpack over 100,000 tiny eggs that are absorbed to a sausage-shaped calcareous beard captivated at the abject of the afterwards accoutrements and agitated by the changeable until hatching.
These breed accept acquired an abnormal aegis mechanism: absolute octopuses are allowed to the poisonous Portuguese man o' war, whose tentacles the macho and adolescent females rip off and use for arresting purposes. Also, clashing abounding added octopuses, the absolute octopus does not use ink to alarm abeyant predators. When threatened, the changeable unfurls her ample net-like membranes that advance out and breaker in the water, abundantly accretion her credible size.
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