Craig Freudenrich is a life scientist and a former AP Biologyteacher with over 25 years experience in biomedical research,science education, and scientific/technical writing. He has a Ph.D.in Physiology from the University of Pittsburgh and currentlyteaches courses at Duke University's Talent IdentificationProgram. Jane Gardner holds an M.S. in Education from the University ofMassachusetts and an M.S. in Geology from Virginia Tech, and is amember of the National Association of Science Writers. She hasworked as a lecturer at Bentley College, a high school scienceteacher, and an Associate Editor of science textbooks.Dora Barlazteaches at the Horace Mann School, an independent school inRiverdale, New York. She has taught AP Environmental Science sincethe inception of the course and has been an Exam Reader for fouryears. During the summer, she travels to exotic places.