15 Dog Breeds That Cannot Be Kept as Pets

12. Cane Corso

    The Cane Corso, an Italian mastiff, is known for its imposing size and protective nature. It was originally bred to guard property and hunt big game. Without proper training and socialization, its strength and assertiveness can pose a challenge.

  Why they are banned: If they are not properly trained and socialized, they can become very territorial and aggressive toward strangers and other animals.   Where they are banned: The Cane Corso is restricted or banned in several countries, including Denmark, Bermuda, and parts of the United States. In some regions, owners must obtain a special permit, provide proof of training, or comply with strict ownership regulations in order to legally own a Cane Corso.