My cats claw has been discolored (black) for almost two years. It's doesn't seem as though it's going to fall off, and, you can see a normal colored nail growing from the same claw.
You can see an image of the claw here: http://cl.ly/1R3F2z1z381v2F2f3W0L (click on it to zoom in).
Any ideas why this might be and what I should do? I'm hesitant to try and remove it myself or cut it.