Yawns are more contagious among people with closer relationships.
163
Humans blink over 10,000,000 times a year!
97
Intelligent men tend to be more sexually faithful.
31
On average a woman has 4 sexual partners in her lifetime.
-143
There's an isolated tribe in Zimbabwe where the people have only two toes, dubbed the 'ostrich people'.
10
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Americans will spend more on cat food this year than baby food.
32