Also known as: 性的二型, 性的二形
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: post #989657 post #876492. It is insufficient for an individual with gender-specific traits to be present.