[ASTPhi877]

Okay, so what I generally understand is this: a yorkie's hair often changes (on the head) from black (and tan, but I'm excluding this in my supposition) often to a pale creamy silver color and then to a deeper gold or deeper tan. If a young yorkie does indeed follow the aforementioned pattern then my question is this:

Does the transition from pale creamy silver to tan/gold occur all at once, as it seems to on the body (i.e. the existing hair grows out as a new blue color, but is not interspersed with new growth of a different color, which might eventually replace the old growth)?

OR

Is the pale creamy silver indeed overtaken by the new outgrowth, via inter-follicular dispersion?

To clarify... do they normally get roots on the head, like we do with dyed hair, or does new colored hair just grow in alongside the old pale creamy til the creamy falls out? Cuz Lucy just seems to be growing in new tan hairs without the old stuff changing. And while that does mean her hairs getting thicker (yippee!) I was just wodering if that was normal?

I dunno if I explained that well at all, but do y'all get my question?