Pp. xi, 396; numerous text-figures (line-drawings, graphs and SEM photographs). Publisher's original tan cloth lettered in green on the spine, two-color pictorial dust jacket, lg 8vo. This is the hardback first edition. This book investigates the behavior of early hominids at Olduvai using not only the traditional data on stone tools and animal bones, but also by incorporating the recent work on taphonomy, the behavior of modern mammals, and a wide range of ecological theory and data (from the jacket flap). From the series "Foundations of Human Behavior." No ownership marks and almost no signs of use.