Dolphins have names for one another.
18
Forty percent of American adults cannot fill out a bank deposit slip correctly.
155
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
Intelligent men tend to be more sexually faithful.
31
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