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Yes, an evolutionary approach is necessary to understand all this scientific information, and all else is a vagary and not worth incorporating within the scientific framework.
If you don't work within an evolutionary framework you will not be able to track and understand the gradual processes, which have been occuring and are occuring within an anthropological framework.
Its important to understand these general categories and apriori sub-types are not just fixed states, but as dynamically evolving constantly, whether it be due to changes in their environment or culture + interaction and hybridization of types.
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