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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?
The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
Did you know?
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
Did you know?
There are 60,000 miles of blood vessels in every adult human.
Did you know?
If you could remove all of your skin, it would weigh up to 5 pounds.