The issue of homo sapiens evolution keeps getting more and more hypotheses. Our genealogy table becomes broader and broader, although the outburst of evolution remains as mysterious as it was two million years ago. A widely-spread version says that fast changes of human appearance gave an incentive to the development of hunting skills in the beginning of the Ice Age. Scientist James O’Connel from the Utah University substantiates another theory: a human being became a human being, because it started eating carrion.

http://english.pravda.ru/main/2003/01/21/42332.html

i think we touched upon this subject in the intelligence of predators thread

Was that article written 25 years ago? If so, it might have been news then. It's pretty well accepted now that scavanging came long before hunting. As for women vs men being the scavengers, I don't see how you come to that conclusion. The article also states that no other apes hunt, when chimps have been well documented hunters. Not only that, but chimps appear to share food ONLY when it is meat obtained thru hunting (usually smaller monkeys).