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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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.
There are approximately 3 million unintended pregnancies in the United States each year.