|The Mastiff (also know as Old English Mastiff) is an ancient dog which may have existed in Great Britain for over 2,000 years. It is believed to be descended from the Tibetan mastiff, a smaller mastiff breed.The Mastiff was developed as a guard dog, for fighting and for companionship.|
Dog moving a little slower now, walking a little stiffer? That may be arthritis. Like people, dogs can develop arthritis in their joints as they get older. But what does this mean in regards to dogs?