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 human body produces and destroys 15 million blood cells every second.
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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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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.
Standard Precautions for the Care of all Patients in All Health Care Settings
Vegetable oils are good sources of essential fatty acids
Prevalence of good health in Canadians aged 65 years and older