These dogs are considered to be the most aggressive

One of the most recognizable traits of a bullmastiff, next to their gigantic size, is their squished, wrinkled faces. However, don’t be fooled; their large, rectangular bodies are filled with strength that has helped them fulfill their job as a guard dog for many years.


They have also been specially bred to be incredibly fast over short distances making them quite the beast. It’s said that bullmastiffs are incredibly friendly with members of their own family, but can be wary when meeting new people for the first time.

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