User blog comment:Catfishperson/The Rhaudur Hillmen on the official server./@comment-25012056-20160301005745/@comment-25841881-20160301033330

No, the filthy ones are all dead. The Dwarves killed them. Also, the clean ones and the filthy ones have an agreement, of course. The filthy ones take all of the dirt and filth from the clean ones(The filthy ones are normally not smart, they think filth makes them smell like dirt/rocks and so they think that they won't be smelled if they are dirty).