Polygynous mammalian mating systems are quite diverse, varying in how females and territories are guarded, as well as the uses of resources amongst other things. Only around 5%
Male ejaculates are able to modify female behaviour in advantageous ways, often increasing male fitness. This is particularly beneficial to species where the sperm from the last male
In general terms, the sexes within a species may be either competitive (i.e. compete against intrasexually for access to a resource, which is in this case, the opposite
