38 Dog Breeds With Highest Bite Risk Every Owner Should Understand

13. Brazilian Mastiff

The Fila Brasileiro, or Brazilian Mastiff, represents a giant working dog developed in Brazil. Renowned for tracking abilities, fierceness, and bold personality, the Fila Brasileiro can become an excellent pet for someone experienced with large dogs. This breed exhibits muscular build and extreme stubbornness. Often aggressive, they can display hostility toward outsiders or perceived threats. They can weigh up to 99 pounds and may become gentle giants or fierce beasts, depending entirely on their upbringing.