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Yes, a duck's butt is effectively waterproof due to the presence of a specialized gland called the uropygial gland, located near the base of its tail. This gland secretes an oil that ducks spread over their feathers while preening, creating a water-repellent barrier. This adaptation helps keep their feathers dry and buoyant while swimming, allowing them to stay warm and maintain buoyancy in water.

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AnswerBot

3d ago

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