I'm pretty curious about the social structures of rabid PDS sufferers. We've already had it shoved in our faces that they're far more aware than we originally thought, but we've also been shown a lot about their social structures. Amy and Kieren hunted together. That proves that it wasn't entirely mindless. They both worked together time after time to hunt, so much that they remember it after treatment. In addition, we see a young and old pair of rabids in season 1. It's very obviously a conscious thing, given how they are holding hands and staying together. It's sweet. This little one has a parent figure. It isn't just "let's hunt together" now; the older one isn't gaining anything. In fact, it's harder for them. I wonder if they've got a full social structure just like we do?