Denmark has twice as many pigs as there are people.
66
Dolphins have names for one another.
18
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79