There's a rare breed of pig that looks like a sheep.
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Cats recognise the voice of their owner, but never evolved to care.
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George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
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Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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