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
Tigers can see 6 times better at night than humans.
305
It takes about 20 seconds for a red blood cell to circle the whole body.
102
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Obsessive nose picking is called Rhinotillexomania.
101
A person can live without food for about a month, but only about a week without water.
156