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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There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
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The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
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Pain occurs when sounds are above 130 db.
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Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
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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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It is possible for you to survive even after the removal of the spleen, the stomach, one kidney, one lung, 75% of the liver, 80% of the intestines, and almost every organ from the pelvic and groin area.
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