Condition where the two sexes of the same species exhibit different characteristics beyond the differences in their sexual organs

Bitch : a revolutionary guide to sex, evolution and the female animal / Lucy Cooke.

Sexual dimorphism in the animal kingdom : a theory of the evolution of secondary sexual characters / J.T. Cunningham.

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Sex Differences

Works from the collections

Bitch : a revolutionary guide to sex, evolution and the female animal / Lucy Cooke.

Sexual dimorphism in the animal kingdom : a theory of the evolution of secondary sexual characters / J.T. Cunningham.