How is the mating ritual of octopus?

Nature is full of wonders and strange things that will blow our mind if you look closely enough. The animal kingdom particularly has many bizarre things most of us are yet to know. The mating ritual of octopi is one such thing we would have a hard time to believe, let alone understand.
There are estimated to be around 300 species of octopi, or octopuses. Many of them are highly intelligent as well, capable of solving mazes and imitation. They have a lifespan of from three to five years. Except some variations, the mating of all the species is almost alike. As you know, octopi have eight long arms. The water creatures can squeeze through tight spaces due to lack of bones. And it is one of these arms that plays a significant role in the mating, at least in the cases of male octopi.
You can say that the mating of octopi is a subdued and mechanical affair. When the female octopus is ready to mate, she releases the equivalent of pheromones which attract males. The male octopus has a special arm called hectocotylus in which spermatophores, or packets of sperm, are stored. In most species, it is the third arm. The male transfers the sperm packets using hectocotylus to the mantle of the female. In some species, the male detaches its entire arm and would give it to the female. The female stores the sperm (or the arm) until she is ready to lay eggs. At the time of laying eggs, she would spread the sperm over them and fertilize them. The number of eggs vary from species to species, and can go up to 200,000. The eggs take between two to ten months to hatch, and the female cares them well, even avoiding food. She sometimes blows water on the eggs to keep them clean and to ensure oxygen supply. Upon hatching, the newborns are on their own and feed on small planktonic creatures. Only a tiny fraction of them would survive the predators and make it to the adult stage, to start another cycle of reproduction.
The octopuses don’t survive the mating for too long. The male dies soon after the mating while the female dies after the hatching of eggs. Scientists have recently discovered that the females of some species suffocate the males to death immediately after the mating, for reasons unknown. More research is going into this phenomenon.

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