There's a rare breed of pig that looks like a sheep.
14
The most expensive cow in the world was sold in 2009 for $1.2 million.
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Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Lurch, a Watusi bull, had the largest horns in the world.
32
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
One in three dog owners say they have talked to their pets on the phone.
427
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
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