Male octopuses have a big problem: female octopuses.
Each male wants to mate and pass on his genes to a new generation.
The trouble is, the female is often larger and hungrier than he is, so there is a constant risk that, instead of mating, the female will strangle him and eat him.
Why do female mantis eat their mate?
During mating, the female bites off his head and then devours his corpse for nourishment. In fact, of the species that exhibit cannibalism of their mates, studies have shown that the females make a meal out of the males between just 13 and 28 percent of the time.
Why do octopuses die after mating?
That’s because they’re semelparous, which means they reproduce just once before they die. With female octopuses, once she’s laid her eggs, that’s it.
Which female animal eats the male after mating?
But octopuses aren’t the only ones who kill their sex partners. Female praying mantises often kill their mates, especially if they’re hungry, and within certain species of spiders, the males will actually offer themselves as a meal for their newly-impregnated partners.
How does a male octopus mate with a female octopus?
Unlike females, “males have a modified third right arm called a hectocotylus, which has a sperm groove down it and a specialized tip,” Mather said. To mate, a male will insert his hectocotylus into the female’s mantle cavity and deposit spermatophores (sperm packets).