The world's smartest pig, owned by a mathematics teacher in Madison, WI, memorized the multiplication tables up to 12.
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In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Dolphins have names for one another.
18
The higher someone’s I.Q. the more likely they are to be sleep deprived.
29
Poor eyesight (myopia) is associated with higher IQ.
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