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Blood is approximately twice as thick as water because of the cells and other components found in it.
There are more sensory neurons in the tongue than in any other part of the body.
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.
Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.
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