In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Intelligent men tend to be more sexually faithful.
31
Awarding people money for doing well in IQ tests causes them to score better, $10 increased people's score by an average of more than 20 IQ points. IQ tests don’t just measure intelligence - they also measure effort.
9
You can only remember 4 things at a time.
31
Forty percent of American adults cannot fill out a bank deposit slip correctly.
155
Poor eyesight (myopia) is associated with higher IQ.
232
Dolphins have names for one another.
18