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Man's Best Friend(s) Reveal the Possible Roots of Social Intelligence

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Science  23 Jun 2006:
Vol. 312, Issue 5781, pp. 1737
DOI: 10.1126/science.312.5781.1737

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Recent controlled experiments show that some social animals have evolved the flexibility and intelligence to deceive and benefit from others and even predict what their peers may do (see main text). But why did these and related abilities evolve? (Read more.)