Dolphins have names for one another.
18
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
In the US, people can be rejected from joining the police force if they are too intelligent.
45
You can only remember 4 things at a time.
31
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Intelligent people have more zinc and copper in their hair.
233
People who are more likeable and attractive are generally perceived as more intelligent. This is called the “Halo Effect.”
13