Dolphins have names for one another.
18
Intelligent men tend to be more sexually faithful.
31
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
The world's smartest pig, owned by a mathematics teacher in Madison, WI, memorized the multiplication tables up to 12.
264
You can only remember 4 things at a time.
31
Forty percent of American adults cannot fill out a bank deposit slip correctly.
155