This is a book by the famous American psychologist Douglas Kenrick. Considering human nature from the perspective of evolutionary psychology, the author comes to the conclusion that behind the civilized façade hides a rather wild interior. But the irrational behavior of people is actually deeply rational, including even racial prejudice and excessive consumption. The author reveals the true nature of social problems, international conflicts and global markets, striking the reader with vivid metaphors and non-standard life examples and giving new answers to the most important questions of modern reality.