Gerald A RosenthalThe author earned his doctoral degree in Botany from Duke University. Dr. Rosenthal spent his career engaged in distinguished research and teaching in Botany, Plant and Insect Biochemistry and Toxicology. He has authored several highly respected techical books, and numerous research articles in professional journals and popular magazines, such as Scientific American, dealing with his areas of expertise. The author has traveled the world for nearly four decades observing and photographing, its major plant communities. A resident of Scottsdale, Arizona, Dr. Rosenthal has lived in, hiked, Read More Read Less