29: FILA BRASILEIRO

This incredibly large dog, which originated from Brazil, has the ability to weigh up to 100 pounds. And due to it’s size, it is not suggested that inexperienced dog owners get one for their home, especially if they have young children. Due to its strength, intelligence and massive body size, this dog requires someone that can handle its exuberance for outdoor activity. It is also said that if the Fila is left alone or is not given enough attention, this dog will go into destructive and aggressive behavior. Plus the fact that it doesn’t get along with other dogs is another concerning characteristic.