image: An Agta hunter-gatherer camp group in the Philippines in 1981. This image relates to an article that appeared in the March 11, 2011, issue of Science, published by AAAS. The study, by Dr. Kim R. Hill, at Arizona State University in Tempe, Ariz., and colleagues was titled, "Co-Residence Patterns in Hunter-Gatherer Societies Show Unique Human Social Structure." view more
Credit: Photo by Bion Griffin (1981)