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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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There are more bacteria in your mouth than there are people in the world.
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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.