Dolphins have names for one another.
18
Intelligent men tend to be more sexually faithful.
31
Intelligent people have more zinc and copper in their hair.
233
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
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