Sexual dimorphism is the systemic difference in form between individuals of different sex in the same species.

Use this tag when the post showcases the distinctions between sexes of a given non-human species (i.e. both sexes are present and differences are easily discernible). Example posts: Danbooru post #989657 Danbooru post #876492. It is insufficient for an individual with gender-specific traits to be present.

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