A man's beard grows fastest when he anticipates sex.
239
The human brain doesn't stop developing until about 25 years old.
102
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
The human sigh acts as a physiological reset button.
23
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
If the human eye was a digital camera, it would have 576 megapixels.
25
Mushrooms are more closely related to humans than they are to plants.
47