Hello friends, I have a few doubts which I would like to clear with the forum's help and discussion board. 1) Since authentic tibetan mastiffs are difficult to distinguish from one sthat have crossbred, it is vital we disntinguish between the various types.. For example, can anyone point out how to differentiate between the amdo mastiffs and the original tibetan molossers? 2) How does one differentiate between the old type tibetan mastiffs and the " new style" tibetan mastiffs... my understanding is the old style one are bred in taiwan and have a melancholy look, generally black in color, and are much longer than are taller..reaching around 30-33 inches at the withers...bloodshot conjunctivate showing and a wrinkly head and a beautiful mane... If members can fill the lacuna in my understanding, please help out... vidya :D