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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As many as one third Americans flush the toilet while they are still on it.
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On average women can hear better than men.
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The offspring of two sets of identical twins are legally cousins but genetically siblings.
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The average person walks the equivalent of twice around the world in a lifetime
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The average American/Canadian drinks about 600 sodas a year!
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The world's youngest parents were 8 and 9 and lived in China in 1910.
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According to CNN national security correspondent David Ensore, as of 2002 bin Laden had married four women and fathered roughly 25 or 26 children.
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