Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
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According to the American Society for Microbiology, 90% of women and 75% of men wash their hands after using a public restroom.
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Intelligent men tend to be more sexually faithful.
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The world's youngest parents were 8 and 9 and lived in China in 1910.
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The world's tallest man reached 8 feet 11 inches at 21.
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Females learn to talk earlier, use sentences earlier, and learn to read more quickly than males.
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More boys than girls are born during the day; more girls are born at night.
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