| Description | English: Comparison of the percentage of male deaths that were caused by warfare in different human societies. The chart compares eight tribes in New Guinea and South America with the US and Europe in the 20th century. |
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| Date | 21 March 2010 |
| Source | Keeley, Lawrence (1996). War Before Civilization: the Myth of the Peaceful Savage. New York: Oxford University Press. as referenced in Pinker, Steven (2002).The Blank Slate. New York: Penguin. page 74. |
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