The world's smartest pig, owned by a mathematics teacher in Madison, WI, memorized the multiplication tables up to 12.
264
You can only remember 4 things at a time.
31
Poor eyesight (myopia) is associated with higher IQ.
232
Dolphins have names for one another.
18
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Intelligent men tend to be more sexually faithful.
31