A similar analysis applies within the realm of mate preferences. Several commentators pointed out that sex differences in human mate preferences are … - Steve Stewart-Williams

This is especially important when addressing less statistically savvy audiences. Such audiences could perhaps be encouraged to think of two normal distributions, one representing males and the other females. Instead of imagining that natural selection creates two distinct psychological types — a male type and a female type, described by the mean values for each group — they could be encouraged to imagine that natural selection pushes the male and female distributions closer together or further apart. This simple expedient may help people to visualize the effects of natural selection on average sex differences without at the same time losing sight of the variation within each sex.

The claim that women have a stronger average parental urge than men is sometimes viewed as a sexist generalization. But it’s only sexist if we take a dim view of the trait in question: the parental urge. One could turn the accusation on its head: Those who view the evolutionist’s claim (that women are more parental than men) as sexist are actually being sexist themselves, because they’re taking a negative view of a trait that’s usually found more strongly in females than males. They are therefore prizing prototypically masculine traits more highly than prototypically feminine ones.

Does female orgasm have an evolutionary function? Ironically, scientists have yet to come to a satisfying conclusion about this matter.