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Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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The familiar sounds of your heart are made by the heart's valves as they open and close.