In Darwin's Shadow is the gripping story of the heretical British naturalist Alfred Russel Wallace who co-discovered natural selection independently of his more well-known contemporary Charles Darwin. Utilizing a number of never-before-used archival sources that bring to bear new interpretations of this most fascinating scientists, best-selling author Michael Shermer applies his training in both the history of science and psychology to reveal the life, science, and personality of Wallace to unravel the mystery of his scientific, quasi-scientific, and non-scientific ideas. Shermer's unique approach goes beyond narrative story-telling to analyse the science, culture, and ideas that lie beneath the life story, in a path-breaking approach to biography. Shermer presents the two major points of intersection and conflict between Wallace and Darwin, one so radical that Darwin accused his younger colleague of intellectual murder! Wallace has always appealed to lovers of travel and adventure stories, because that is the life he led: In Darwin's Shadow will also appeal to historians of science, readers of popular science, and fans of Shermer's previous books.