Perhaps you could tame wolves and turn them into a tool. Im not sure of the exact way of doing this, but I have some ideas.
After taming wolves you could create a pack, the wolves in the pack could have a chance of turning against you creating something interesting and new. After a few generations of these wolves perhaps they can be turned into hunting dogs. With the ability to place a small pack on them for extra storage and being able to hunt small game (ei. foxs/rabbits/hedgehogs) and carry one home in its mouth. The dog could also be implemented in the tracking of criminals, needing one on top of the tracking skills in order to find a perp. The dog after being domesticated would not be able to fend off bigger game (ei. bears/boars etc.) unlike its fearsome ancestors. If you are not careful with the breading they turn into house dogs that lay around the plot and eat all of the food

Not sure if this has been suggested yet, would love to see it.