Charles E. Hilton is an Assistant Professor in the Department of Anthropology at Grinnell College, Iowa. As a biological anthropologist with a background in human skeletal biology, functional morphology, human evolutionary ecology, and epidemiology, his research focuses on how small-scale human groups, particularly foragers, develop and evolve both short- and long-term biological and cultural responses within environmental settings offering limited ... Read moreresources. Benjamin M. Auerbach is an Assistant Professor in the Department of Anthropology at the University of Tennessee, Knoxville. A functional anatomist, skeletal biologist and evolutionary biologist, he has spent fifteen years collecting osteometric and anthropometric data to document morphological variation among modern humans within the context of evolutionary forces. Libby W. Cowgill is an Assistant Professor in the Anthropology Department at the University of Missouri, Columbia. Her research interests include human growth, development, and functional morphology as well as Late Pleistocene human evolution. Her current research program explores the relationship between childhood behaviour and selection pressure and the formation of adult skeletal morphology. Show Less