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Did you know?
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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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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Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.