This form of selection depends, not on a struggle for existence in relation to other organic beings or to external conditions, but on a struggle between the individuals of one sex, generally the males, for the possession of the other sex.
Hautespen era hau ez dago beste izaki organikoekin edo kanpoko baldintzekin loturiko existentziaren aldeko borrokaren mende, baizik beste sexuaz jabetzeko sexu bateko banakoen artean, eskuarki arren artean, burutzen den borrokaren mende.