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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Males sweat 40% more than females.
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A person will create enough saliva to fill two average size swimming pools during his lifetime.
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The average bra size today is 36C. Ten years ago it was 34B.
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35% of the people using personal ads for dating are already married!
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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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Only 2% of the Earth's population are natural redheads.
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