James T. Costa is professor of biology and executive director of the Highlands Biological Station at Western Carolina University. His books include Darwin's Backyard; The Annotated "Origin"; Wallace, Darwin, and the Origin of Species; Darwin and the Art of Botany (with Bobbi Angell); and (with Elizabeth E. Yale) The Descent of Man: An Annotated Edition of Darwin's Classic Work (Princeton).He is a recipient of the Alfred Russel Wallace Medal and other honors.