As many as one third Americans flush the toilet while they are still on it.
157
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Only about 2% of the world population has green eyes.
36
Half of all Americans over the age of 55 have no teeth.
39
People with light eye colors (like blue, green or grey) have a higher alcohol tolerance.
194
Men are more attracted to women whose bone structure is similar to their own mothers. It's called "sexual imprinting".
18
Children's sense of smell is better than adults'.
860