In nature, males can impregnate many females and do not have to necessarily be around to rear their many offspring. So it is advantageous to have many females t

In nature, males can impregnate many females and do not have to necessarily be around to rear their many offspring. So it is advantageous to have many females that can procreate with less males to increase the population size at a higher rate than more males and less females to mate with.