sentences:  Male reproductive success can be determined by their number of fathered offspring, and monogyny is seen quite often in sexually cannibalistic species.Males are willing to sacrifice themselves, or lose their reproductive organs in order to ensure their paternity from one mating instance.Whether it is by spontaneous programmed death, or the male catapulting into the mouth of the female, these self-sacrificing males die in order for prolonged copulation to occur.