The English Mastiff, more regularly referred to as simply Mastiff, is a giant bully breed believed to be a descendant of the ancient Alunt. The English Mastiff and its predecessors have been critical to the development of most known molosser breeds.
While the Irish Wolfhound and Great Dane are taller, the English Mastiff is the largest dog in the world based on mass, with specimens weighing up to 250lbs and with the largest ever recorded coming in at a whopping 343lbs.
Due to its large size, it is often afflicted by the same issues as other large breeds face, such s hip dysplasia, heart issues, breathing issues, gastric issues, and climate-related issues, which result in easily overheating.
The color range of this breed is relatively minute, coming in various shades of fawn with or without brindle.
Examples similar to the English Mastiff breeds date back as far as 1600BC in figurines.
The Book Of Saint Albans credited to Prioress Juliana Berners, written in 1465, contains the first list of dog breed names used by the term Mastiff. Historically, the first Mastiffs may have entered America on the Mayflower but officially was not recorded entering until the late 1800s.
The breed was nearly lost to extinction with various ups and downs in the breed's history by 1910. Since then, however, the breed has once again gained popularity and is now one of the more popular breeds in America.