Ethnic Differences across pre-Columbian Mexico

A new analysis of the skulls of prehistoric peoples in Mexico reveals significant regional variation in the facial characteristics of indigenous populations – indicating that there were notable physical differences between geographically separate groups before the arrival of Europeans. "There has long been a school of thought that there was little physical variation prior to European contact," says Ann Ross, a forensic anthropologist at NC State who co-authored a paper on the work. "But we’ve found that there were clear differences between indigenous peoples before Europeans or Africans arrived in what is now Mexico." Read more.