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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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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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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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Women are 50% to 75% more likely than men to experience an adverse drug reaction.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.