History and Geography of Human Genes is one of my favorite books; it might rank up there in my “top 10” if I ever wished to enumerate one. But in both Human Evolutionary Genetics, a textbook, and A Genetic and Cultural Odyssey, a biography of L. L. Cavalli-Sforza, it was noted that the PCA maps … Continue reading What L. L. Cavalli-Sforza got wrong?