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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Men fall in love faster than women do.
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Only 2% of the Earth's population are natural redheads.
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Thrity-five percent of the people who use personal ads for dating are already married.
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As many as one third Americans flush the toilet while they are still on it.
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