There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
Intelligent people have more zinc and copper in their hair.
233
You can only remember 4 things at a time.
31
Poor eyesight (myopia) is associated with higher IQ.
232
People who are more likeable and attractive are generally perceived as more intelligent. This is called the “Halo Effect.”
13
Intelligent men tend to be more sexually faithful.
31