Intelligent people have more zinc and copper in their hair.
233
You can only remember 4 things at a time.
31
The higher someone’s I.Q. the more likely they are to be sleep deprived.
29
In the US, people can be rejected from joining the police force if they are too intelligent.
45
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
The world's smartest pig, owned by a mathematics teacher in Madison, WI, memorized the multiplication tables up to 12.
264