I'm sure this is a stupid question, but I'm not proud....hwell: our light apricot girl (22 months) has a really black nose in the summer. In the winter it lightens up considerably. I thought probably they all did - "tanning" during the summer. But our puppy (10 months, dark apricot) has a black nose, too, and his hasn't lightened up this winter at all. Do the lighter colored dogs' points tend to lighten up in the winter?