There are actually seven different types of twins: Identical, Fraternal, Mirror-Image, Polar Body (Half Identical), Mixed Chromosome, Superfecundation, and Superfetation.
20
The average person will go on a date at least 100 times before they finally marry.
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Only 2% of the Earth's population are natural redheads.
13
Up to the age of six or seven months a child can breathe and swallow at the same time. An adult cannot do this.
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The average person laughs 13 times a day!
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A person will create enough saliva to fill two average size swimming pools during his lifetime.
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You share your birthday with at least 9 other million people in the world.
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