tag:blogger.com,1999:blog-8677405.post-5218197849360700982007-11-16T03:26:00.000Z2007-11-16T03:26:00.000ZI wrote this based on a number of sources, probably starting with WikiPedia as I usually do. You might pursue the sources for the supporting table, Robert D. McCracken, "Lactase Deficiency: An Example of Dietary Evolution," Current Anthropology 12 (Oct.-Dec. 1971, pp. 479-517), Norman Kretchner, "Lactose and Lactase," Scientific American 277 (Oct. 1972, pp. 71-78), and others. Largely lifted from <A HREF="http://anthro.palomar.edu/adapt/adapt_5.htm" REL="nofollow">this site</A>.D. Wheathttp://www.blogger.com/profile/03846478957198693337noreply@blogger.com