There are actually seven different types of twins: Identical, Fraternal, Mirror-Image, Polar Body (Half Identical), Mixed Chromosome, Superfecundation, and Superfetation.
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People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
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In the presence of attractive women, men find running easier, take more risks, donate more money, consume more calories, and talk more.
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The world's shortest man measures only 21.5 inches.
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