The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Tigers can see 6 times better at night than humans.
305
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
The world's shortest man measures only 21.5 inches.
73
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22