Most scientists agree that the key to our success is the unusually large size of our brains.
Our large brains gave us our exceptional thinking capacity and led to humans' other distinctive characteristics, including advanced communication, tool use, and walking on two legs. According to Stanford, what made humans unique was meat. Or, rather, the desire for meat, the eating of meat, the hunting of meat, and the sharing of meat. Based on new insights into the behavior of chimps and other great apes, our now extinct human ancestors, and existing hunting and gathering societies, Stanford shows the remarkable role that meat has played in these societies. And it has given men the power to manipulate and control women in these cultures.