sperm is stored in the epididymis in the human body.
where is sperm stored in the human body?
in the epididymis
an alternative proposal is that testicular descent was preceded, and possibly influenced, by migration of the sperm storage region of the epididymis to a cooler extra-abdominal location. the evolutionary adaptive advantage of testicular descent into an extra-abdominal position may be related more to the enhanced sperm storage capacity of the epididymis at lower extra-abdominal temperatures than to the testis itself. greater sperm storage capacity in the epididymis has been associated with enhanced fertility. in this context, the proportion (26% of total) of mature sperm stored intra-abdominally in the monotreme epididymis is considerably less than the proportion of mature sperm stored in the epididymis of many eutherian mammals (50-75% of total) with descended testes.
evolution of descended testes in mammals
during mating, red flour beetles are known to engage in polygamous behavior. male flour beetles have been known to recognize their relatives while the females do not have this capability. lack of the ability to recognize their relatives has led females to mate with any male within the population. female red flour beetles are also known to store sperm after mating. more sperm is stored by the first mating, which leads to less sperm stored in subsequent matings. however, amount of stored sperm does not stop the last male mate from fertilizing the egg. this is due to the fact that with each mating, males can remove previously stored sperm thus giving their own sperm an advantage to fertilize the egg.
red flour beetle