Dogs and other mammals can fluff up or press down their fur to increase or decrease their insulation, respectively, which is similar to what happens when we put on or take off pieces of clothing. Altering the fluffiness of their coat is extremely cheap energetically, and therefore has a negligible effect on their metabolic rate. If you shave your dog, what will happen to the width of his/her thermoneutral zone? A It will stay the same. B It will become narrower (span a more narrow range of ambient temperatures). C It will become wider (span a wider range of ambient temperatures).