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Did you know?
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
Did you know?
Illicit drug use costs the United States approximately $181 billion every year.
Did you know?
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
Did you know?
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."