John A. McLachlan, Ph.D., is currently the Celia Scott and Albert J. Weatherhead, III Distinguished Professor of Environmental Studies and Professor of Pharmacology at Tulane University. He is Director of the Center for Bioenvironmental Research at Tulane and Xavier Universities. Professor McLachlan is a pioneer in the study of the effects of estrogens on fetal development and a long time leader in the field of endocrine disruption research. He recently has established a major interdisciplinary program and research center at Tulane in the Art, Science and Technology of the Mississippi River known as the RiverSphere.