Poor eyesight (myopia) is associated with higher IQ.
232
You can only remember 4 things at a time.
31
People who are more likeable and attractive are generally perceived as more intelligent. This is called the “Halo Effect.”
13
Forty percent of American adults cannot fill out a bank deposit slip correctly.
155
Dolphins have names for one another.
18
Intelligent people have more zinc and copper in their hair.
233
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8