Compared to other large mammals with wide geographic distributions, human populations do not reach this threshold. In fact, even though humans have the widest distribution, the measure of human genetic diversity (based on sixteen populations from Europe, Africa, Asia, the Americas, and the Australia-Pacific region) falls well below the threshold used to recognize races for other species and is among the lowest value known for large mammalian species (Figure I.1). This is true even if we compare humans to chimpanzees (Templeton 2013).

