Women rate men more attractive if other women are looking and smiling at him.
17
You share your birthday with at least 9 other million people in the world.
201
Identical twins do not have identical fingerprints.
79
Children laugh about 400 times a day, while adults laugh on average only 15 times a day.
973
One million Americans, about 3,000 each day, take up smoking each year. Most of them are children.
-86
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Only 2% of the Earth's population are natural redheads.
13
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