A few weeks after we got him, he started getting gray hairs in his black fur (I thought they were white and they he'd be a tuxy). I think he's still a kitten, still growing into what color/size he's suposed to be. His littermate was all grey...so maybe that's why he's turning colors. He WAS the runt in the litter. He is only four months old still.

I will call the vet though and let you all know if there is a problem with him.