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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

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The average office desk has 400 times more bacteria on it than a toilet.

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Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

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