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.
35
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
Yawns are more contagious among people with closer relationships.
163
Your fingernails grow faster in summer.
744
We share 70% of our DNA with a slug.
218
One human hair can support 3 ounces.
191
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11