Sexual selection in mammals

Sexual selection in mammals is a process the study of which started with Charles Darwin's observations concerning sexual selection, including sexual selection in humans, and in other mammals, consisting of male–male competition and mate choice that mold the development of future phenotypes in a population for a given species. == Elephant seals == A good example of intrasexual selection, in which males fight for dominance over a harem of females, is the elephant seal – large, oceangoing mammals of the genus Mirounga.

Source: Wikipedia — Sexual selection in mammals (CC BY-SA 4.0)