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Did you know?
Your heart beats over 36 million times a 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?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
Did you know?
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.