http://www.nytimes.com/2009/05/27/books/27garn.htmlHuman beings are not obviously equipped to be nature’s gladiators. We have no claws, no armor. That we eat meat seems surprising, because we are not made for chewing it uncooked in the wild. Our jaws are weak; our teeth are blunt; our mouths are small. That thing below our noses? It truly is a pie hole. To attend to these facts, for some people, is to plead for vegetarianism or for a raw-food diet. We should forage and eat the way our long-ago ancestors surely did. For Richard Wrangham, a professor of biological anthropology at Harvard and the author of “Catching Fire,” however, these facts and others demonstrate something quite different. They help prove that we are, as he vividly puts it, “the cooking apes, the creatures of the flame.”
This is a very interesting theory on how homo erectus diverged from apes about two million years ago. Dr. Wrangham's theory is a new, unique, look on how we came to be, all based on the simple fact that we learned how to tame fire and cook our food.