The offspring of two sets of identical twins are legally cousins but genetically siblings.
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Men laugh longer, louder, and more often than women.
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There are about 255 babies born worldwide every minute.
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The world's youngest parents were 8 and 9 and lived in China in 1910.
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As many as one third Americans flush the toilet while they are still on it.
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Approximately 70,000 people in the U.S. are both blind and deaf!
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