Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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Mahatma Gandhi used to travel with his goat so that he could have fresh milk.
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Cats recognise the voice of their owner, but never evolved to care.
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It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
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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.
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When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
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The Basenji dog is the only dog that is not able to bark.
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