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Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
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Illicit drug use costs the United States approximately $181 billion every year.
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The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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