Extensively revised and updated, the second edition of The Fossil Trail: How We Know What We Think We Know About Human Evolution offers a colorful history of fossil discoveries and a revealing insider's look at how these finds have been interpreted—and misinterpreted—through time. It covers the dramatic increase in the size and scope of the human fossil record as well as new techniques for analyzing and interpreting that record that have emerged in the 13 intervening years since the first edition's publication. Ian places the researchers and their discoveries within the context of their social and scientific milieus and reveals the many forces that shape our interpretation of fossil findings.