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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?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
Did you know?
There are 60,000 miles of blood vessels in every adult human.
Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.