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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The offspring of two sets of identical twins are legally cousins but genetically siblings.
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85% of movie actors earn less than $5,000 a year from acting!
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The average person falls asleep in seven minutes.
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Babies' eyes do not produce tears until the baby is approximately six to eight weeks old.
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The world's youngest parents were 8 and 9 and lived in China in 1910.
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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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