Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
If your DNA was stretched out it would reach to the moon 6,000 times.
256
Only humans shed emotional tears.
331
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
One human hair can support 3 ounces.
191
Early American humans hunted car-size armadillos and used their shells for houses.
12
Your fingernails grow faster in summer.
744
Every human spent about half an hour as a single cell.
144