The evidence for the ancestry of the human species among the apes is overwhelming. But the facts are never "just" facts. Human evolution has always been a value-laden scientific theory and, as anthropology makes clear, the ancestors are always sacred. They may be ghosts, or corpses, or fossils, or a naked couple in a garden, but the idea that you are part of a lineage is a powerful and universal one. Meaning and morals are at play, which most certainly...