When left in their natural habitat, most animals don't interfere with human health or negatively impact the environment.
In some cases, animals that are displaced from their natural habitat become pests because they interfere with human activities or are destructive.
Before getting rid of a specific animal that you feel is a pest, first determine whether you've identified it correctly and then consider ways to prevent rather than destroy or kill. You can contact your municipality or a local pest management company for assistance or advice.