It's weird b/c there is hair there, its silver and very thin and silky.
Here's a close up:
http://www.yorkietalk.com/gallery/data/500/224hair.jpg
And come to think of it the past few weeks have been our coldest, and lately Ranger has been rolling around a lot in the leaves. It could have something to do with the weather/season, but hopefully the vet can figure something out!!