Dolphins have names for one another.
18
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
People who are more likeable and attractive are generally perceived as more intelligent. This is called the “Halo Effect.”
13
In the US, people can be rejected from joining the police force if they are too intelligent.
45
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Poor eyesight (myopia) is associated with higher IQ.
232
The world's smartest pig, owned by a mathematics teacher in Madison, WI, memorized the multiplication tables up to 12.
264