For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
Gorillas can catch human colds and other illnesses.
205
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Our Right Lungs takes more air than our left lung.
194