Dolphins have names for one another.
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A group of kittens is called a "kindle".
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When cats are happy, they may squeeze their eyes shut.
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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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There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
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A new born kangaroo is small enough to fit in a spoon!
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