Early American humans hunted car-size armadillos and used their shells for houses.
12
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
Human hair and fingernails continue to grow after death.
7
Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
34
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197