Sexual dimorphism in body size is greater in societies where

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When males compete for access to females, the competition results in larger males being more successful in mating, leading to the evolution of sexual dimorphism in body size. This is because larger size gives males an advantage over smaller males in fighting for access to females. In contrast, when females compete for access to males, sexual selection will favor larger females instead. Monogamous mating pattern or the absence of competition does not necessarily affect the degree of sexual dimorphism in body size.

Sexual Dimorphism in Body Size Is Greater in Societies Where