The Savannah is the largest domestic cat breed. It resembles a small leopard and behaves like a dog. They can grow up to 40 lbs, have an eight foot vertical jump, and can be trained to walk on a leash and play fetch.
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When cats are happy, they may squeeze their eyes shut.
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A group of kittens is called a "kindle".
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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
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One litter of kittens can be produced by more than one father.
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Dolphins have names for one another.
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