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
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
Forty percent of American adults cannot fill out a bank deposit slip correctly.
155
Poor eyesight (myopia) is associated with higher IQ.
232
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Awarding people money for doing well in IQ tests causes them to score better, $10 increased people's score by an average of more than 20 IQ points. IQ tests don’t just measure intelligence - they also measure effort.
9