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The male octopus uses a modified tentacle (this specialised arm is called a hectocotylus) insert spermatophores (packets of sperm) into the female's mantle cavity.

The hectocotylus in benthic octopuses is usually the third right arm.

Males die within a few months of mating.

I have observed octopuses mating and they can be quite far apart while the sperm exchange happens.

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14y ago

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