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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You can only remember 4 things at a time.
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Women end up digesting most of the lipstick they apply.
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Studies suggest that people who appear to be constantly distracted have more "working memory" and "sharper brains".
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Americans throw out 4.5 pounds of trash a day - twice that of 40 years ago.
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