Poor eyesight (myopia) is associated with higher IQ.
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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
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
People who are more likeable and attractive are generally perceived as more intelligent. This is called the “Halo Effect.”
13
You can only remember 4 things at a time.
31