The world's smartest pig, owned by a mathematics teacher in Madison, WI, memorized the multiplication tables up to 12.
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Poor eyesight (myopia) is associated with higher IQ.
232
You can only remember 4 things at a time.
31
People who are more likeable and attractive are generally perceived as more intelligent. This is called the “Halo Effect.”
13
Intelligent men tend to be more sexually faithful.
31