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Did you know?
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.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.
Did you know?
There are approximately 3 million unintended pregnancies in the United States each year.
Did you know?
More than 4.4billion prescriptions were dispensed within the United States in 2016.