Answer:
They are unable to survive in this environment.
Step-by-step explanation:
Animals bred as pets are only able to survive in the environment that they are accustomed to. By releasing a pet into the wild, although you may mean well, you are subjecting the animal to a world in which it is not equipped to be able to handle. In the wild, there are dangers and predators that were not present when the animal was kept in captivity.