A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
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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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Dolphins have names for one another.
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Dogs sometimes fake being sick to get attention.
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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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