In 1996, research found that having excessive body hair is linked to higher intelligence.
23
The world's smartest pig, owned by a mathematics teacher in Madison, WI, memorized the multiplication tables up to 12.
264
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
Poor eyesight (myopia) is associated with higher IQ.
232
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8