Human physical appearance refers to the outward phenotype or look of human beings. There are infinite variations in human phenotypes, though society reduces the variability to distinct categories.

People across the world and throughout history have enhanced their physical appearance. The prevalence of appearance enhancement indicates that it might serve essential functions—for example, ...

University Park, Pa. -- Chimpanzees and humans are minimally different genetically, but the small differences are what make us human, according to a team of researchers who identified segments of ...