Here is a link to the paper I mentioned sometime back that was languishing in press for a long time. I hope it is of interest: http://alexandriaarchive.org/bonecommons/items/show/1838 Mindy Z. Melinda A. Zeder Senior Scientist, Program in Human Ecology and Archaeobiology Curator, Old World Archaeology National Museum of Natural History Smithsonian Institution PO Box 37012 Washington D.C. 20013-7012 Office: 202 633-1886 Lab: 301 238-1024 Fax: 202 357-2208 [log in to unmask] _