Wade Davis holds degrees in anthropology and biology, and received his Ph.D. in ethnobotany, from Harvard University. He spent over three years in the Amazon and Andes as a plant explorer, and later went to Haiti to investigate folk preparations implicated in the creation of zombies. The Haiti assignment led to his writing The Serpent and the Rainbow (Simon and Schuster, 1986), an international bestseller that was later released as a feature motion picture. He has published more than 90 scientific and popular articles on subjects ranging from Haitian vodoun and Amazonian myth and religion to the global biodiversity crisis, the traditional use of psychotropic drugs, and the ethnobotany of South American Indians. Among his other books are Nomads of the Dawn (Pomegranate Press, 1995), Passage of Darkness (University of North Carolina Press, 1988) and One River (Simon and Schuster, 1996).