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Animals keep themselves clean in different ways. Dogs usually get clean by scratching themselves. This gets rid of the loose hairs. They don't like a water bath often on them. Too much Water makes a dog's skin dry and it may crack. When children take a bath, they sometimes forget to clean their ears. But bats don't forget their ears must always be clean because bats find their way by listening to sounds. A bat puts the thumb of its winged front "hand" in its ear and twists it around to loosen the dirt. The rest of its. Body is kept spotless with its long pink tongue.