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
In the US, people can be rejected from joining the police force if they are too intelligent.
45
Poor eyesight (myopia) is associated with higher IQ.
232
The higher someone’s I.Q. the more likely they are to be sleep deprived.
29
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
Forty percent of American adults cannot fill out a bank deposit slip correctly.
155