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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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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.
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Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.
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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).
A typical reception area in a medical office.
Typical slip-joint pliers are common household pliers. The slip joint allows the jaws to be opened ...
A typical two-wire coil-on-plug ignition system showing the triggering and the switching being ...
A cross-sectional view of a typical zirconia oxygen sensor.
Typical box used for the disposal of bagged, sealed, and autoclaved biological waste.
Typical sandwich bar