After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
On average a woman has 4 sexual partners in her lifetime.
-143
Mushrooms are more closely related to humans than they are to plants.
47
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Gorillas can catch human colds and other illnesses.
205