Donald Fry and Patrik Soderberg, “Lethal Aggression in Mobile Forager Bands and Implications for the Origins of War,” Science, July 19, 2003, pp. 270-273.
A controversy exists regarding mobile forager band societies (MFBS)and warfare…We extracted a subsample of purely MFBS (n = 21) from the standard cross-cultural sample (SCCS)…The 21 MFBS produced a total of 148 lethal aggression events. The median number was 4 (mean = 7.05; SD = 14.64), with a range from 0 to 69. One society, the Tiwi of Australia, had an exceptionally large number of lethal events (n = 69). If the Tiwi case is removed, the median number of lethal events for the remaining 20 societies drops to 3.5, the mean is almost cut in half (mean = 3.95; SD = 3.69), and the range is reduced to 0 to 15. Read more »