Humans today display relatively limited sexual dimorphism (≈15%), whereas some of the other hominoids

(gorillas and orangutans) are highly dimorphic (>50%) (5, 9). Body mass is easily determined in living species.

Is there dimorphism in humans?

Although humans exhibit low levels of sexual dimorphism compared to other animals, differences between females and males are numerous. Evolutionary, sexually dimorphic traits develop through the process of sexual selection.

Are humans monomorphic or dimorphic?

Humans are commonly considered a relatively monomorphic species on the basis of our low bodily sexual dimorphism; however, given our species entrance into the cognitive niche, psycho- logical sex differences might be more indicative of where human evolution has been sex differentiated.