The mating process of octopus is relatively complex and risky. Male octopuses have a special tentacle called the metaphyseal arm, which serves as both a mating tentacle and a genital. There is a groove in the carpus for storing packets of sperm.

During mating, the male octopus will keep a certain distance from the female octopus and extend as far as possible while she is not paying attention. Stem wrist. Then, it will quickly insert its metamorphic wrist into a specific part of the female octopus's siphon or mantle (this is also the hole that the female octopus uses to breathe and expel waste), and inject sperm to complete the fertilization process. This process requires extreme precision and speed, as female octopuses are often larger and can be aggressive, and males need to ensure they can escape quickly after mating is complete to avoid being eaten.

In some cases, male octopuses may even resort to more extreme tactics. For example, it will cut off its own tentacles, leaving its arms inside the female until she is ready to be fertilized. Although this strategy is risky, it can increase the chance of successful mating.

In general, the mating process of octopuses is full of risks and challenges, and requires a high degree of wit and courage from male octopuses. . This mating method also reflects the uniqueness and adaptability of the octopus as a marine creature.