A duck's quack doesn't echo, and no one knows why.
173
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
A baby eel is called an elver, a baby oyster is called a spat.
18
An adult giraffe's tongue is 17 inches long.
28
Koala Bears are not bears.
34
Cats lose almost as much fluid in the saliva while grooming themselves as they do through urination!
205