Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
It is possible for you to survive even after the removal of the spleen, the stomach, one kidney, one lung, 75% of the liver, 80% of the intestines, and almost every organ from the pelvic and groin area.
218
The human sigh acts as a physiological reset button.
23
If the human eye was a digital camera, it would have 576 megapixels.
25
In one day, adult lungs move about 10,000 litres of air.
11
The human brain is more active during sleep than during the day.
28
The human brain doesn't stop developing until about 25 years old.
102