While the original Molossus dog is now extinct, their ancestral line continues in Molosser-types, including Mastiff breeds and other dogs like the Boxer, Great Dane, American Pit Bull Terrier, ...

These are just some of the factors for why the average cost of a Newfoundland over its lifetime is £28,332. The Mastiff, also known as the English Mastiff, comes in as the third most expensive dog ...