It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
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Every three seconds, a new baby is born.
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90 percent of women who walk into a department store immediately turn to the right.
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Forty percent of American adults cannot fill out a bank deposit slip correctly.
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According to Harris Interactive, 70% of men and 57% of women shower daily.
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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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