So going back to our biological minds, then, we might think that females should choose to have sex with the guys that have the shorter appendages, because she can use her time for other things: avoiding predators, taking care of young, finding and ingesting food.
Så med et biologisk syn på tingene skulle vi måske tro, at hunnen burde vælge sex med fyrene, der har kortere vedhæng, så hun kan bruge hendes tid på andre ting: Undgå rovdyr, tage sig af de små, finde og indtage mad.