Who we are by nature, why we are, in the direction of what future humanity is moving - these are the questions that the book answers. The word of a scientist reflecting on the roots and limits of man as a biological species, against the background of various cultural-centric interpretations of the human phenomenon, sounds unusual, sobering. The author's scientific approach to a person in front of readers turns into a philosophy of modern science, set forth by an accessible and non-specialist style.