Women have a slightly higher average IQ than men.
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Women mature much faster than men.
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People who are more likeable and attractive are generally perceived as more intelligent. This is called the “Halo Effect.”
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Blonde hair is not exclusive to Europeans. Melanesians of the south Pacific evolved a different gene for blonde hair.
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Nearly 10% of American households dress their pets in Halloween costumes.
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Awarding people money for doing well in IQ tests causes them to score better, $10 increased people's score by an average of more than 20 IQ points. IQ tests don’t just measure intelligence - they also measure effort.
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People who have a strong friendship possess the ability to communicate with one another through facial expressions.
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