Tool use or culture? Language or religion? Since Darwin, the question of what distinguishes humans from other animals has been on the table. In his new book, the quintessence of his long-term research, Michael Tomasello presents a fascinating answer: It is the cooperation-oriented social behavior that paved the unique path of humans in evolution - the fact that our ancestors at some point began to collaborate, devise goals together, and pursue them. But why did they start doing this in the first place? Tomasello traces how early humans, due to changing environmental conditions, were compelled to view the world not just from their individual perspectives but from various viewpoints. To survive, they had to better coordinate their behavior and learn to navigate complex social situations.