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Did you know?
There are approximately 3 million unintended pregnancies in the United States each year.
Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
Did you know?
Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
Did you know?
There are 60,000 miles of blood vessels in every adult human.