Answer :

Pros:
1. It would keep the wolf population under control
2. Their prey's population will increase
Cons:
1. Their prey would become overpopulated from not being eaten
2. The wolf population might be endangered if people keep on hunting them.
Nepeta
not to mention that along the food chain, if that prey is taken out, the plant population, or whatever that animal eats, will also go down, resulting in possibly MANY threatening population drops.