This accessible guide provides an introduction to evolutionary psychology - the fascinating and often controversial new discipline that studies human behavior, evolution and the mind. Starting with its origins in the work of Charles Darwin, the book covers all the key areas of evolutionary psychology, including the role played by genetics in our sexual behavior, parental decision-making, and how babies learn about and adapt to the world. In clear and straight-forward language, the book also breaks new ground in examining the debates and ethical questions raised right now by evolutionary psychology and contemplating their implications for the future of humankind.