Very interesting point! What about those dog breeds that have almost no fur though? I do not really know the name of them, but I have seen them on the dog show and around town from time to time. I imagine they might get fairly cold, at least during the winter. I used to have a tiny dog that would get cold during the winter here in Arizona. I was actually a little surprised at first since Arizona weather is usually fairly warm, even during the winter. My mom bought her a cute sweater though and it seemed to make her a lot warmer. I usually find it strange when people dress up their dogs, but I guess sometimes it really is needed. I am just glad I live in a warmer state so I do not have to worry that much about the cold weather, for me it is more about keeping my dogs cooled off.