Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
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Cats sleep for 70% of their lives.
8
When you shave a guinea pig it looks like a little hippo.
19
There's a rare breed of pig that looks like a sheep.
14
Sharks, like other fish, have their reproductive organs in their chests.
248
Domestic pigs average a top speed of about 11 miles per hour.
182
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34