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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Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
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The world's shortest man measures only 21.5 inches.
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The largest cell in the human body is the female egg and the smallest is the male sperm.
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All 13 minerals necessary for human life can be found in alcohol beverages.
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When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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Tigers can see 6 times better at night than humans.
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A man's beard grows fastest when he anticipates sex.
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