Image: Rick Potts of the Smithsonian in his office
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Description: Rick Potts of the Smithsonian in his office showing 2 million year old stone tools crafted by early humans
Title: Rick Potts of the Smithsonian in his office
Credit: Own work
Author: Fuzheado
Usage Terms: Creative Commons Attribution-Share Alike 4.0
License: CC BY-SA 4.0
License Link: http://creativecommons.org/licenses/by-sa/4.0
Attribution Required?: Yes
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