Intelligent men tend to be more sexually faithful.
31
Dolphins have names for one another.
18
You can only remember 4 things at a time.
31
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
The higher someone’s I.Q. the more likely they are to be sleep deprived.
29
Poor eyesight (myopia) is associated with higher IQ.
232
Intelligent people have more zinc and copper in their hair.
233