I think we should be able to have one more habitat (at least) on the Arctic Isles. If Glacius takes up a habitat space (and I read somewhere that he does, even though he flies around) then we can't get all the Arctic dragons because there are 12 besides Glacius and only enough habitat spaces for 12 dragons. There seems to be plenty of room to add a habitat. So what gives? I'd like to keep trying for a polar dragon (the only one I don't have). But what's the point if there's nowhere to put it? Actually the Arctic Isles could use a bit more development...it seems they've been abandoned.