I don't have cat tails on my wolves, but I can easily see why some people would. Well, one thing, just to be different, mix models together. Just having at the model, seeing what you can make and how it turns out. Another would be the species, some people like to have made-up species with a wolf and a slimmer tail. It all just comes down to the creative mind of another person and what they like. Having a cat with bunny ears or other, endless combinations in that nature. So, yeah, no surprise to see a wolf with a cat tail, just another person before a screen enjoying the avatar they created. ~