Gorillas can catch human colds and other illnesses.
205
A man's beard grows fastest when he anticipates sex.
239
A person can live without food for about a month, but only about a week without water.
156
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
The human brain uses approximately as much energy as a 10 watt light bulb.
120
Tigers can see 6 times better at night than humans.
305
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82