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This is Scientific American's 60-Second Science. I'm Amy Kraft. Got a minute?

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Good news for big-time networking primates:

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other primates that live in large social groups have more street smarts than their comrades with smaller social circles.

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So finds a study in the journal PLoS ONE.

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Researchers tested the circumstances under which lemurs would pilfer food from people.

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The study included ring-tailed lemurs, which come from large social groups,

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as well as lemurs from small-groups, like the mongoose lemur.

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The lemurs all had the same brain size, so would be presumed to have similar raw intelligence.

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Humans sat in a room with either a plate of food on the table in front of them or behind them.

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A third group of people was blindfolded, with the plate in front of them.

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Lemurs from large social groups tended to steal the food if the person's back was to it.

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Lemurs from smaller social groups went for the food as frequently regardless of its position.

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And no lemurs appeared to understand the purpose of a blindfold.

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The researchers interpret the results as showing that social factors can influence a species' smarts.

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So you could be outwitted by a birdbrain, if he has a lot of friends.

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Thanks for the minute, for Scientific American's 60-Second Science. I'm Amy Kraft.

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