>>14330631No. In fact every species, even those which have one male getting all the females like seals, have a 50-50 male-female split.
>>14329601Suppose there's some gene which makes you have more female children than males, for instance. Not unrealistic that can exist. Suppose this gene reaches a certain frequency in the population and we get 40 males for every 60 females, also realistic. At some point another gene arises which makes you have more males than females, because there are more females in the population, this gene has a relative advantage because if you have more males they can go out and have more children with more females. Thus, this "male dominant" gene arises in frequency until it reaches an equilibrium with the other gene. In this way any population will naturally attain a 50-50 male female split, even if only a small fraction of males or females are actually having kids compared to the other gender.
