I believe it is fairly common for black noses to change to pink with age. I remember an article on Jeanne Carley's model, Moosephat, who kept his black nose for a long time and my 4yo Inola has (She's considered a "black" ferret, anyway) But the black nose of my 2yo sable is slowly turning pink. Carla, Artie & Emma [Posted in FML issue 3035]