On average a woman has 4 sexual partners in her lifetime.
-143
A man's beard grows fastest when he anticipates sex.
239
The average sperm cell swims at 8 inches per hour.
4
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
Early American humans hunted car-size armadillos and used their shells for houses.
12
Gorillas can catch human colds and other illnesses.
205
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11