If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
A man's beard grows fastest when he anticipates sex.
239
The human brain has the capacity to store everything that you experience.
4k
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515