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Like many other octopuses, the blanket octopus uses ink to intimidate potential predators. [7] Also, when threatened, the female unfurls her large net-like membranes that spread out and billow in the water, greatly increasing her apparent size. Blanket octopuses usually live in coral reefs, where they hunt for food, which consists of small fish.
Female blanket octopuses can roll up and unfurl their webbed blanket as needed. [10] The blanket serves to make the octopus look bigger, and the females can also sever the blanket off to distract predators. [11] The male blanket octopuses was first observed to be using Portuguese man o' war stingers in 1963.
The blanket octopus male is an example of sexual-evolutionary dwarfism; females grow 10,000 to 40,000 times larger than the males and the sex ratio between males and females can be distinguished right after hatching of the eggs. [127] Egg cases laid by a female squid
In some instances, a female octopus would launch materials at a nearby male who was trying to mate with her. Perhaps it’s her way of communicating that she wasn’t interested in his attention.
In argonauts, the male transfers the spermatophores to the female by putting its hectocotylus into a cavity in the mantle of the female, called the pallial cavity. This is the only contact the male and female have with each other during copulation, and it can be at a distance. During copulation, the hectocotylus breaks off from the male.
Hatchlings of the giant Pacific octopus (Enteroctopus dofleini)—one of the two largest octopus species—weigh 0.0253 g (0.00089 oz) on average. [ 30 ] At the other extreme are nautiluses , which upon hatching typically have a shell diameter of 25 mm (1 in) or more (depending on the species), the largest hatchling size among extant ...
Hannah Kobayashi, from Hawaii, has been missing since she landed in Los Angeles on Friday, Nov. 8. A Hawaii woman who has been missing since she failed to board a connecting flight in Los Angeles ...
Here's how FDIC national deposit rates on a $10,000 minimum deposit compare between October and November 2024, showing all terms trending down. Savings and deposit account National deposit rate on ...