A complete scientific biography of Darwin that takes into account the latest research findings, both published and unpublished, on the life of this remarkable man. Considered the first book to thoroughly emphasize Darwin's research in various fields of endeavor, what he did, why he did it, and its implications for his time and ours. Rather than following a strictly chronological approach - a narrative choice that characteristically offers an ascent to On the Origin of Species (1859) with a rapid decline in interest following its publication and reception - this book stresses the diversity and full extent of Darwin's career by providing a series of chapters centering on various intellectual topics and scientific specializations that interested Darwin throughout his life. Authored by academics with years of teaching and discussing Darwin, Darwin's Sciences is suited to any biologist who is interested in the deeper inplications of Darwin's research.