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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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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
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About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.