All the categories of human variation in this section (age, sex, disease, race) have some basis in biology, but this last one is the most arbitrary out of all of them. The decision to group people bas...All the categories of human variation in this section (age, sex, disease, race) have some basis in biology, but this last one is the most arbitrary out of all of them. The decision to group people based on superficial visual characteristics is not founded in absolute biological difference, but in a long history of cultural difference. Race is culture, not biology. We have a cultural tendency to cram human variation into racial categories.
