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Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
There are approximately 3 million unintended pregnancies in the United States each year.
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?
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.