Mark J. Plotkin, PhD, is president of the Amazon Conservation Team. He is the author of Tales of a Shaman's Apprentice, Medicine Quest, and coauthor, with Michael Shnayerson, of The Killers Within.
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Tales of a Shaman's Apprentice has been called one of the greatest adventure stories ever told.As then-chief ethnobotanist for Conservation International, Mark Plotkin spent almost 15 years tracking the shamans of the northeast Amazon. Their knowledge of ... SEE MORE