Abstract

Sexual dimorphism refers to any difference, morphological (i.e. form and structure) or behavioural, between males and females of the same species. The following discussion will be limited to human male and female differences. These differences refer to average differences between the sexes. For example, men, on average, are taller than women, although an individual woman may be taller than an individual man. Some women are taller than some men, but, on average, men tend to be taller than women. The following discussion refers to average differences between the sexes, not absolute differences between all members of either sex.