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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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
Listening to loud music with headphones or at rock concerts is a frequent cause of hearing loss amon