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Monkey Choice

Caption: A monkey chooses between groups of objects.

Credit: Citation: Kralik JD, Xu ER, Knight EJ, Khan SA, Levine WJ (2012) When Less Is More: Evolutionary Origins of the Affect Heuristic. PLoS ONE 7(10): e46240.doi:10.1371/journal.pone.0046240

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Related news release: Less is more when choosing between groups of assorted items