User blog comment:TheDarkMantis15/New "race/group" idea/@comment-995908-20131203044416/@comment-7637833-20131203055902

Perhaps along these lines:

"It is a cancer - a hungering, monstrous disease that could mean the end of all life as we know it. It spreads like a plague, engulfing all life within its infectious maw. What it digests, makes it more destructive. It may very well blot out the sun of dawn and extinguish any hopes we had of staying here for longer."