The offspring of two sets of identical twins are legally cousins but genetically siblings.
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Approximately 70,000 people in the U.S. are both blind and deaf!
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Males sweat 40% more than females.
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Every human spent about half an hour as a single cell.
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Each year, around 24,000 Americans are bitten by rats!
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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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