Forty percent of Americans have never visited a dentist.
33
More than half the population of Kenya is under the age of 15.
71
There's an isolated tribe in Zimbabwe where the people have only two toes, dubbed the 'ostrich people'.
10
Only about 2% of the world population has green eyes.
36
Most people smile when they are frustrated, according to a study.
15
Men laugh longer, louder, and more often than women.
61
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
