How Humans Evolved uses the broad perspective of behavioral ecology, drawing on Robert Boyd's expertise in evolutionary theory and Joan Silk's specialty in primate behavior in a uniquely integrative text. For the Third Edition, the authors have revisited many chapters in depth, added new supplemental readings, and incorporated the latest archaeological findings, including coverage of the fossil craniumSahelanthropus tchadensis, whose dating was announced in the summer of 2002. Copyright (C) Muze Inc. 2005. For personal use only. All rights reserved.