Consequently, the possibility that our behavior is genetically influenced is often ignored. The advocates of a "more biologically oriented" approach are attempting, in effect, an intellectual revolution. Part I of this volume examines, discipline by discipline, the history of the evolutionary thrust, leading figures and key literature, the degree of acceptance (or rejection) within each discipline, and the likely future prospects. Part II discusses the biobehavioral approach on a geographic basis, with experts assessing the status of evolutionary behavioural science across a number of countries and regions.