People who are more likeable and attractive are generally perceived as more intelligent. This is called the “Halo Effect.”
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The higher someone’s I.Q. the more likely they are to be sleep deprived.
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In the US, people can be rejected from joining the police force if they are too intelligent.
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Intelligent men tend to be more sexually faithful.
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Dolphins have names for one another.
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In 1996, research found that having excessive body hair is linked to higher intelligence.
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The world's smartest pig, owned by a mathematics teacher in Madison, WI, memorized the multiplication tables up to 12.
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