When cats are happy, they may squeeze their eyes shut.
10
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
A dork is a whale's penis.
327
Condoms were originally made of animal intestines or linen.
347
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
The world’s largest frog, the Goliath frog, can grow over 13 inches in length and can jump up to 10 feet in a single bound.
8