For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
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
The human body contains over a billion miles of DNA.
147
Gorillas can catch human colds and other illnesses.
205
Our Right Lungs takes more air than our left lung.
194
If the human eye was a digital camera, it would have 576 megapixels.
25
