forager-horticulturalists; and acculturated hunter-gatherers. Hunter-gatherers were groups without significant contact with outside cultures and included the !Kung , the Ache , the Agta , the Hadza , and the Hiwi . Forager-horticulturalists hunted, gathered, and used some agriculture. They included the Yanomamo , the Yanomamo Xilixana , the Tsimane , the