My single grey hair (discovered last week. Did you know it's rather hard to take a picture of one's own head? I supposed I could've asked somebody, but didn't think of it):
Elka's single white hair (much harder to see, apologies, so I drew an arrow. It's on her flank, not her head):
Now, I'm sure my grey hair is because I'm *sigh* 30. Elka's white hair on her side, I have no idea. I know dogs will frequently grow back white hairs after an injury, but to my knowledge, she hasn't hurt herself in that manner. Or she did on the scale of a single hair follicle and I missed it. Go figure.
(I thought about posting this for Black and White Sunday, but thought that might be a little too tongue in cheek....)