Sexing the body refers to identifying the biological sex of an organism. There are many synonyms for this term which are commonly used. Some of these synonyms include gender identification, sexual differentiation, sexual dimorphism, and differentiation of the reproductive system. The process of sexing the body is important for many reasons, including breeding and conservation efforts. In animals, sexing the body involves examining physical characteristics such as genitalia, size, and coloration. In humans, sexing the body involves examining chromosomes, hormones, and external genitalia. Regardless of the terminology used, it is important to accurately determine the biological sex of an organism for a variety of scientific and practical purposes.