Tribe Foraging (IMAGE) Penn State Caption New genetic research reveals a large community in Southern Africa that was the largest group of humans for most of the past 150,000 years. The research indicates that the men in culture typically did not take wives from outside the group. Their culture has remained unaltered for hundreds of generations, with only recent events endangering their hunter-gatherer lifestyles. This image shows two members of the Ju:'hoansi tribe foraging in North-Western Namibia. Credit Stephan C. Schuster, Penn State University Usage Restrictions The image credit must be published along with the photo. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.