Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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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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Thyroid conditions may make getting pregnant impossible.
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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
Long-term studies of the Glanville fritillary butterfly, Melitaea cinxia, have provided exceptional
The “Old Man” from La Chapelle shows evidence of extensive tooth loss and bone resorption.
Vaccine Information Sheet (VIS) provided by the CDC for the varicella vaccination.
When parents actively support higher education, their children achieve more in their future careers.
Income of Adult Children Compared With That of Their Parents