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
Dolphins have names for one another.
18
Intelligent men tend to be more sexually faithful.
31
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
You can only remember 4 things at a time.
31