Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
Only humans shed emotional tears.
331
On average a woman has 4 sexual partners in her lifetime.
-143
The human brain doesn't stop developing until about 25 years old.
102
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
The largest cell in the human body is the female egg and the smallest is the male sperm.
682