If the human eye was a digital camera, it would have 576 megapixels.
25
Every human spent about half an hour as a single cell.
144
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
The human brain doesn't stop developing until about 25 years old.
102
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
The world's shortest man measures only 21.5 inches.
73