Cows can sleep standing up, but they can only dream lying down.
745
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
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
When you shave a guinea pig it looks like a little hippo.
19
Early American humans hunted car-size armadillos and used their shells for houses.
12
Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
16
The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2