I have seen the first problem now and then on our dogs, but not as much as on the pictures shown above. I sometimes see it when I clip their coats when they have been long haired for a while. It goes away within a week without me doing anything other than clip and bath once.
Could it have something to do with warmth and/or humidity?
Once we had a male loosing hair on his ears. He looked like Archie, but in his case the vet said it was lice, and after treatment, the hair grew back. He did scratch a little but not much, but the lice could be seen in a microscope, so it was defintely lice. (I'm hoping i'm using the right word).
