New York: Free Press, (1993) dj. SIGNED hardcover first edition - An anthropologist's account of how "knowledge about early humans has leaped dramatically during the last generation. [In] 1950, biological anthropology was born at a conference at Cold Spring Harbor. This new science replaced the old method of studying fossil human specimens.. . with new disciplines that situated early humans in their social and ecological context. . . [He recounts ] his own adventures on long, weary, dusty digs in Zaire and Libya are recounted with verve as he addresses key questions - Why did bipedalism develop? What role did climate play in our origins?" SIGNED on the title page. Photographs, index. 276 pp. ISBN: 0-029045010.