Theo Colborn is a Professor of Zoology at the University of Florida, Gainesville, and President of The Endocrine Disruption Exchange (TEDX), based in Paonia, Colorado. She is an environmental health analyst, and best known for her studies on the health effects of endocrine disrupting chemicals. Dr. Colborn has served on numerous advisory panels, including the U.S. Environmental Protection Agency Science Advisory Board, the Ecosystem Health Committee of the International Joint Commission of the United States and Canada, the Science Management Committee of the Toxic Substances Research Initiative of Canada, the U.S. EPA Endocrine Disruptor Screening and Testing Advisory Committee, and the EPA Endocrine Disruption Methods and Validation Subcommittee. She has published and lectured extensively on the consequences of prenatal exposure to synthetic chemicals by the developing embryo and fetus in wildlife, laboratory animals, and humans. Over the years she established and directed the Wildlife and Contaminants Program at World Wildlife Fund US. In her retirement she has set up a non-profit, TEDX, to carry on the work of providing objective, technical information about endocrine disruption and related low-exposure hazards for academicians, policy makers, government employees, community-based and health support groups, public health authorities, physicians, the media, and individuals.