On the Evolution of Tool-Using Behavior in American Anthropologist Volume 70 Volume 1

56-66 pages with tables and cited references. Royal octavo (9 1/4" x 6 1/4") bound in original publisher's wrappers. Volume 70, number 1 complete issue. First edition. New archeological discoveries from the Lower Pleistocene in Africa, the advent of radiometric dating techniques, and recent observations on the behavior of free-ranging nonhuman primates can be combined to provide a fresh perspective on the evolution of tool-using behavior. The Lower Pleistocene in which relatively simple Oldowan tools are associated with small-brained forms lasted over two million years and represents over 80 percent of human history. These discoveries suggest that tool-making and tool-using are behavior patterns that emerged much more slowly in the course of human evolution than was previously thought. Condition: Spine and edges sunned, light edge wear, corners bumped, rubbed and creased else very good.