Humans are an exceptionally diverse species morphologically and many aspects of size vary substantially with environmental factors such as nutritional status. Historically there has been an effort to organize human physical variation into "races," although there is no scientific basis for the application of a race concept to human variation. Human physical variation is continuous and available evidence suggests that gene flow among human populations throughout their history has been the rule rather than the exception.
Humans are characterized by their bipedalism and their lack of significant body hair. Males are generally larger than females, with more pronounced muscle development and generally more hair on the face and torso than females.
Other Physical Features: endothermic ; homoiothermic; bilateral symmetry ; polymorphic
Sexual Dimorphism: male larger; sexes shaped differently
I take exception to the above claim that there is "no scientific basis for the application of a race concept to human variation". Actually I was a little shocked to see this topic discussed in your first paragraph in the first place. I wish you had been as interested in earnestly describing the morphology of the species as you were in making an unessential and disputed claim about the existence of races. I will refrain from venturing a guess about your motives. However, since you brought it up... I refer those interested in the subject to "Human genetic diversity: Lewontin’s fallacy" by A.W.F. Edwards and "The Grasshoppers Tale" (from "The Ancestor's Tale") by R. Dawkins. This was not a good first impression of the EOL.