The average person will go on a date at least 100 times before they finally marry.
33
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
A person can live without food for about a month, but only about a week without water.
156
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
Tigers can see 6 times better at night than humans.
305
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118