They may have claimed that in 1990, it's an old theory. Niggers developed separately from the other races. They are the only race that can successfully produce offspring with a chimp. lol Injuns came from Europeans and Asians that mated in Siberia before crossing the land bridge, according to Eske Willerslev. Indians are on average 1/3 European. Mexicans probably moreso since they mated with Spaniards.