Sarah Elton is Professor of Evolutionary Anthropology at Durham University, UK. She previously held posts at the University of Kent and the Hull York Medical School. Her research focuses on morphological variation and evolution in Old World monkeys, with a particular interest in geographic and ecological influences on form. Sarah trained as a biological anthropologist and as result of her time working in a medical school also has an active interest in evolutionary perspectives on medicine, especially nutrition. For several years she was co-Editor in Chief of the Journal of Human Evolution (JHE) and currently serves as Associate Editor of JHE, Evolutionary Anthropology, the Journal of the Royal Anthropological Institute and Primate Biology.