Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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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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There are about 255 babies born worldwide every minute.
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The world's tallest man reached 8 feet 11 inches at 21.
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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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Females learn to talk earlier, use sentences earlier, and learn to read more quickly than males.
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The most recorded orgasms in an hour were 134 for one woman and only 16 for a man.
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