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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A hard working adult sweats up to 4 gallons per day.
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A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
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The average American eats at McDonalds more than 1,800 times in their life.
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Touching a teddy bear can make people feel less lonely.
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Approximately 70,000 people in the U.S. are both blind and deaf!
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The Japanese, on average, are the shortest people.
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Approximately 4 to 5% of the U.S. population has one or more clinically significant phobias in a given year. Specific phobias occur in people of all ages. The average age of onset for social phobia is between 15 and 20 years of age, although it can often begin in childhood.
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