Primate taxonomy contributes to the science of anthropology by providing an evolutionary framework for the biological and cultural origins of human behavior. But taxonomy involves methods and principles that are not always readily accessible to the anthropologist who may depend upon the results of taxonomic research to interpret the evolution of human behavior. This juxtaposition of disciplines is particularly challenging for the anthropologist when taxonomic research either fails to provide a resolved classification for humans or other primate groups, or it requires the reevaluation and even falsification of long established units of classification. These taxonomic challenges are relevant to anthropological interpretation because the units of taxonomic classification are arranged to reflect hypotheses about evolutionary relationships. With these practical and conceptual challenges in ...