Forty percent of American adults cannot fill out a bank deposit slip correctly.
155
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
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
You can only remember 4 things at a time.
31
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
Dolphins have names for one another.
18