The Fila Brasileiro, commonly known as the Brazilian Mastiff, is a large mastiff breed developed in Brazil and comprises English mastiff, Bloodhound, Bulldog, and Rafeiros do Alentejo.
Due to its size and potential for aggression, the breed has been banned in several countries such as the United Kingdom, Israel, Denmark, Norway, Malta, and Cyprus and is considered a dangerous dog in New Zealand and Trinidad and Tobago, requiring their sterilization and disallowing their import.
The gait of the breed is quite unique in that both legs on each side move together, giving it a rolling motion some have said resembles the walk of a camel.
Characteristic to the breed is its ability to chase and hold, which is even exhibited in the young offspring.
Dr. Paulo Santos Cruz is often referred to as the father of the breed and was instrumental to the development of the first standard.
Due to its dedication to its owner and obedience, there is a saying in Brazil that is "As faithful as a Fila." Due to its large size, it is often afflicted by the same issues that other large breeds face, such as hip dysplasia, heart issues, breathing issues, gastric issues, and climate-related issues such as easily overheating.