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 with blue eyes are better able to see in the dark.
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Every workday, 6.7 million people commute to Manhattan!
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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As many as one third Americans flush the toilet while they are still on it.
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As a rule, 66 percent of people keep their eyes closed while kissing. The rest take pleasure in watching the emotions run the gamut on the faces of their partners.
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You share your birthday with at least 9 other million people in the world.
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