Over the course of a month's time, the males will engage in a fierce competition to bring their prospective mates large quantities of food or shiny objects, obtained by slaughtering humanoids that live nearby. Once a female chooses a mate, the pair lay their eggs in the female's lair and the male only leaves to bring back food. Males that do not win a mate during this time are at their most aggressive, killing anything they encounter and leaving the bodies uneaten.