Intelligent people have more zinc and copper in their hair.
233
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Intelligent men tend to be more sexually faithful.
31
Dolphins have names for one another.
18
The higher someone’s I.Q. the more likely they are to be sleep deprived.
29
Forty percent of American adults cannot fill out a bank deposit slip correctly.
155