6:380-9. 4. Holldobler B, Wilson EO. The superorganism: The beauty, elegance, and strangeness of insect societies. New York: W. W. Norton; 2008. 5. Bowles S. Did warfare among ancestral hunter-gatherers affect the evolution of human social behaviors? Science 2009;324:1293-8. 6. Haidt J, Patrick Seder J, K