How did humans evolve from Neanderthals to sapiens? An anthropologist and a writer converse like two friends, one as a sapien and the other as a Neanderthal. How did we come out of the caves? How did our body and brain evolve: How was language born, symbolic thinking, social rules, and the fear of death? “A book-wonder of originality that combines science, literature, travel, imagination, and humor to help us understand where we come from, who we are, and where we are going” (La Verdad).