Predators are usually not that good for keeping animal populations in check. They often kill more than they can eat and leave the rest alone[1]. If you introduc

Predators are usually not that good for keeping animal populations in check. They often kill more than they can eat and leave the rest alone[1]. If you introduce predators for population control you would have to introduce scavengers as well. Otherwise rangers will have to clean up after them or the carcasses become a problem. In the end you would need a whole and healthy ecosystem for this to work out correctly. [1] https://en.wikipedia.org/wiki/Surplus_killing https://en.wikipedia.org/wiki/Surplus_killing