If someone calls you an animal, you"re probably right to take offense. But what gave animals such a bad rap? In this provocative book, Frans de Waal argues that modern-day evolutionary biology does a disservice to the natural world, reinforcing our habit of labeling the good things we do as "humane" and the less civilized as animalistic. Citing evidence from his extensive research of primate behavior, de Waal argues against such views and explains how humankind evolved from a long line of moral mammals. Based on the Tanner Lectures that de Waal delivered at Princeton University"s Center for Human Values in 2004, "Primates and Philosophers" includes responses by philosophers Peter Singer, Christine M. Korsgaard, and Philip Kitcher and science writer Robert Wright.