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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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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.
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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.