In external characters , they are distinguished from the Felidae by the hind foot being five-toed owing to the invariable presence of the first digit , by the retention of the interramal tuft of facial vibrissae , and typically by the longer muzzle and shorter limbs .
In external characters , they are distinguished from the Felidae by the hind foot being five-toed and typically by the longer muzzle and shorter limbs .