User blog comment:BioChimes/Ork Clan vs Ork Tribe/@comment-33731050-20150501005923/@comment-33731050-20150501091125

I think the topic is a little confused by the writers. The main six clans are separated by both Kulture, and biology. Where it says that there are a number of smaller clans, I think by the sound of it that it is just referring to tribes, or local empirical culture.