Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
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There are 20 feet of blood vessels in each square inch of human skin.
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Excessive alcohol use costs the country approximately $235 billion every year.
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The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
Long-day stimulation of flower development in Arabidopsis.
Genetic control of flower symmetry.
True-color view of Mars seen through NASA's Hubble Space Telescope in 1999