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April 30, 2010
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Maasai tribe in Kenya. An example of a large group with maintained cooperation.
Image shows a Maasai tribe at dawn in Kenya. This image is an example of a human society with maintained cooperation. How this cooperation originates and is maintained is the topic of this paper by Boyd and colleagues.
Credit: © 2010 JupiterImages Corporation
Images credited to the National Science Foundation, a federal agency, are in the public domain. The images were created by employees of the United States Government as part of their official duties or prepared by contractors as "works for hire" for NSF. You may freely use NSF-credited images and, at your discretion, credit NSF with a "Courtesy: National Science Foundation" notation.
Additional information about general usage can be found in Conditions.
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