Forty percent of American adults cannot fill out a bank deposit slip correctly.
155
Intelligent men tend to be more sexually faithful.
31
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
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
Poor eyesight (myopia) is associated with higher IQ.
232