Figure 2From: The population genetics of wild chimpanzees in Cameroon and Nigeria suggests a positive role for selection in the evolution of chimpanzee subspecies Sample locations of chimpanzees. Locations spanned Cameroon and eastern Nigeria. Probable distributions of P. t. ellioti (purple) and P. t. troglodytes (orange) ranges are shown. Circles denote both hair and fecal samples were collected at the location. Squares denote only hair samples were collected.Back to article page