The North American Mastiff is a breed of medium to large-sized with a heavy bone structure, their personality is very laid back and family orientated but protective of their surroundings. Agile and ...

LAS VEGAS (CN) – The American Mastiff Breeders Council conspired to fix prices on puppies and restrict competition, and punished a breeder who objected, the breeder says in a federal antitrust and ...

American Mastiff. iStock. Then you have the American Mastiff—another Molosser. Also very large and strong, this Mastiff usually has amber eyes, rounded, high-set ears and a long, drawn-out muzzle.

The North American Mastiff is a mix of English and Anatolian Mastiff. It's a rather large dog, as they can grow to 36 inches and weigh nearly 200 pounds. LaMelo Ball is scared of his brother's dog.