Peter Lucas is Professor of Anthropology at George Washington University. His special interests include dental morphology and function; primate diet, feeding ecology, and behavior; chemical and physical content of food; tools for the field study of foraging mammals; and evolution of color vision. Dr. Lucas’ regional focus is on the Old World. Selected publications: "The sensory ecology of primate food perception," Evolutionary Anthropology 10:171-86, 2001 (with N. J. Dominy, D. Osorio, and N. Yamashita). "Mechanical defences to herbivory," Annals of Botany 86:913-920, 2000 (with I. M. Turner, N. J. Dominy, and N. Yamashita).