This book investigates the evolutionary roots of human behavior and morality. Robert Wright, drawing on evolutionary psychology, explores the genetic strategies that underpin human actions, from mating rituals and social hierarchies to the development of moral codes and public policies. The book examines how our biological inheritance shapes our contemporary lives, questioning fundamental assumptions about human nature and societal structures.

The Moral Animal is widely regarded as a significant and provocative work in the field of evolutionary psychology. Reviewers from The New York Times Book Review have praised it as 'a feast of great thinking and writing about the most profound issues there are,' and lauded its intelligence, writing quality, and originality. The book's exploration of genetic strategies behind human behavior, including sexual preferences and office politics, has sparked considerable discussion regarding its implications for morality and public policy.