Dolphins have names for one another.
18
Intelligent men tend to be more sexually faithful.
31
You can only remember 4 things at a time.
31
Forty percent of American adults cannot fill out a bank deposit slip correctly.
155
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
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
Intelligent people have more zinc and copper in their hair.
233