What are humanity's biological origins? What are the mechanisms, including culture, that continue to drive it? What is the history that has allowed it to evolve over time? And what are its functions--how does it survive and thrive by exploiting the features that define it as a species? These are the four questions of the Tinbergen Method for explaining animal behavior, developed by the Nobel Prizewinning Dutch ethologist Niko Tinbergen. This book...