Do werewolves have tails?
You can find pictures (and movies) of werewolves both ways, with and without, and it is much debated which is true. Many modern movies will show werewolves with tails, I think one of the reasons for this is that it is something very different from humans, and something which humans do not have. If you grow a tail when you transform, you are definitely not human….the movie Ginger Snaps is a good example of this, they use the growth of the tail to show that this person is not human, and it’s supposed to be one of the first signs of the werewolf transformation.
More logically however, werewolves do not have tails. Werewolves are humans that transform…growing a tail would mean growing actual bones during the transformation process. While many things happen during transformation, growing an actual tail is not one of them.