A funny thing to do: flipping back and forth between the two maps of present time biomass distribution http://stommel.tamu.edu/~baum/paleoveg/veg-pres-big.gif and that of the last glacial maximum http://stommel.tamu.edu/~baum/paleoveg/veg-adams-big.gif Btw, Tom we've had a bunch of discussions on megafauna like in http://maelstrom.stjohns.edu/CGI/wa.exe?A2=ind0010&L=paleofood&P=R13300 http://maelstrom.stjohns.edu/CGI/wa.exe?A2=ind0010&L=paleofood&P=R14617 http://maelstrom.stjohns.edu/CGI/wa.exe?A2=ind0105&L=paleofood&P=R1806 Alas, I only hear gereralisations on the animal fat and availability, like: "They have eaten the organs which are very fatty..." (and so much?) or "There were vast herds" (and humans hunted easily on them?) or "Fat was priced very high" (and was available plenty, therefore?) The only real full animal disassembly and listing I found in Cordains Kangaroo posting, and the reports of others which influenced him (Speth). I think Cordain's diet plan is very well reasoned with true paleolithical facts - as opposed to other books and to widespread meanings. Particularly he addresses the major points of - acid/base balancing through enough of vegetable material - the fat composition of paleo animals and how to achieve similar results regards Amadeus