Fig. 2
From: Similar rates of morphological evolution in domesticated and wild pigs and dogs
Historical change in one of the here investigated skull variables in two domestic dog breeds. Although a change of the prebasial angle (angle between the hard palate and the cranial base of the skull) throughout many decades can be discerned in both breeds (dorsal bending in the St. Bernard and ventral bending in the bullterrier), a significant change of this variable could only be found in the St. Bernard (see Tables 4 and 5). The prebasial angles are indicated with white bars on the depicted photographs of skulls, which are scaled to the same neurocranial length