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Did you know?
Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
Did you know?
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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If you could remove all of your skin, it would weigh up to 5 pounds.