Book excerpt: Now available in paperback?a provocative new look at biology, evolution, and human behavior ?as disturbing [as it is] fascinating? (Publishers Weekly). Why are most neurosurgeons male and most kindergarten teachers female? Why aren?t there more women on death row? Why do so many male politicians ruin their careers with sex scandals? Why and how do we really fall in love? This engaging book uses the latest research from the field of evolutionary psychology to shed light on why we do the things we do?from life plans to everyday decisions. With a healthy disregard for political correctness, Miller and Kanazawa reexamine the fact that our brains and bodies are hardwired to carry out an evolutionary mission? an inescapable human nature that actually stopped evolving about 10,000 years ago.