In Africa, this process led to the development of three main types: the brownish-yellow Bushmen in the south, the darker Negroes throughout most of the continent and the Caucasoid Mediterranean types in the north.
Most of the concepts, held even by scholars about the nature and origin of races, are being proven inaccurate.

Anthropological literature used to suggest that skin color in some groups was a possible indication of Mongoloid influences or that the thin, straight lips common in another group could be envisioned as a Caucasoid feature.

However, it has become increasingly obvious that an analysis based on specific single traits such as these is always a poor indication of either racial origin or of racial contact.

In fact, they could just as likely be the result of spontaneous and local variations within a given population grouping.

In contrast, recent anthropological research is putting less emphasis on bone measurement and shape and, instead, is turning increasingly to technical analysis particularly through the examination of blood types.
Making and using tools are what differentiate man from animals.