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
The world's shortest man measures only 21.5 inches.
73
Tigers can see 6 times better at night than humans.
305
Our brains have a negativity bias and will remember bad memories more than good ones.
15
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
One human hair can support 3 ounces.
191