A human being loses an average of 40 to 100 strands of hair a day.
133
One human hair can support 3 ounces.
191
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Your fingernails grow faster in summer.
744
The average person will go on a date at least 100 times before they finally marry.
33
Your heart will pump about 212 million liters in its lifetime.
26
Early American humans hunted car-size armadillos and used their shells for houses.
12
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13