Dolphins have names for one another.
18
Intelligent people have more zinc and copper in their hair.
233
You can only remember 4 things at a time.
31
Poor eyesight (myopia) is associated with higher IQ.
232
Intelligent men tend to be more sexually faithful.
31
People who are more likeable and attractive are generally perceived as more intelligent. This is called the “Halo Effect.”
13