How Many Human Races Are There?

Compared with other species, humans are very similar to one other. In the case of chimpanzees, genetic variation is two to three times more significant than in humans. In orangutans it is eight to ten times more significant. In the past, scientists attempted to divide the human race into multiple groups, however, most modern biological anthropologists agree that there isn't enough variation in humans to justify defining unique biological races, varieties or sub-species.