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A sex ratio is the ratio of males to females in a population. As explained by Fisher's principle, for evolutionary reasons this is typically about 1:1 in species which reproduce sexually.Cinsel fetişizm, ilk olarak Alfred Binet tarafından Le fétichisme raks l’amourde tanılamamlanan amma kökeni daha eskilere raci, sönük bir nesnenin yahut e