DNA evidence tells us that mastiff-type dogs originated in Tibet some 5,000 years ago, and the Tibetan Mastiff is no doubt a descendant of those dogs. (3/15) by Judy Powell September 19, 2020, 5:40 am Judy Powell 0 Previous 3/15 Next View full list See more Previous article They sleep a lot! Next article You’d be hard-pressed to find a sweeter breed. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.