Fila Brasileiro

Also known as the Brazilian Mastiff, the breed was developed in Brazil as a large working dog. Their tendency towards aggression has made this breed illegal in the United Kingdom, Norway, and Israel, along with being restricted in Australia. The large Fila Brasileiro stand at 23 to 29 inches and weighs between 90 and 110 pounds. The extreme aggression and guarding temper of this breed make owners far and few.