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Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Did you know?
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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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 ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.