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
Poor eyesight (myopia) is associated with higher IQ.
232
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
Dolphins have names for one another.
18