Intelligent people have more zinc and copper in their hair.
233
The world's smartest pig, owned by a mathematics teacher in Madison, WI, memorized the multiplication tables up to 12.
264
You can only remember 4 things at a time.
31
Intelligent men tend to be more sexually faithful.
31
In the US, people can be rejected from joining the police force if they are too intelligent.
45
The higher someone’s I.Q. the more likely they are to be sleep deprived.
29
In 1996, research found that having excessive body hair is linked to higher intelligence.
23