Only the strongest, most genetically "fit" sperm can navigate these labyrinths to reach the storage site. In this way, the female is not a passive vessel; she is an active gatekeeper, using her anatomy to filter for the best genes without ever having to fight off a suitor physically.
Only the strongest, most genetically "fit" sperm can navigate these labyrinths to reach the storage site. In this way, the female is not a passive vessel; she is an active gatekeeper, using her anatomy to filter for the best genes without ever having to fight off a suitor physically.