Intelligent people have more zinc and copper in their hair.
233
Poor eyesight (myopia) is associated with higher IQ.
232
Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17
The higher someone’s I.Q. the more likely they are to be sleep deprived.
29
People who are more likeable and attractive are generally perceived as more intelligent. This is called the “Halo Effect.”
13
Forty percent of American adults cannot fill out a bank deposit slip correctly.
155