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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
There are more nerve cells in one human brain than there are stars in the Milky Way.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
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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