1. Division of Anthropology American Museum of Natural History New York NY 10024 USA
2. Department of Biosciences Centre for Ecological and Evolutionary Synthesis (CEES) University of Oslo 0316 Oslo Norway
3. Department of Anthropology Center for the Advanced Study of Human Paleobiology The George Washington University Washington DC 20052 USA
4. Department of Biology Washington University in St Louis St Louis MO 63130 USA
5. South Texas Diabetes and Obesity Institute The University of Texas Rio Grande Valley Brownsville, Harlingen, Edinburg TX 78520 USA