It's possible to lead a cow upstairs, but not downstairs.
50
The poison-arrow frog has enough poison to kill about 2,200 people!
55
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
Over 10,000 birds a year die from smashing into windows!
-41
The abdomen of the ant contains two stomachs. One stomach holds the food for itself and second stomach is for food to be shared with other ants.
113
The world's oldest crow was 59 years old. Its name was Tataji.
215