Dusky smooth-hound fishes is their ability to continually replace the teeth in their upper and lower jaws. Smooth dogfish differ from other sharks because of their 10 rows of flat, blunt teeth. The teeth in the upper and lower jaws are similar in size and are asymmetrical with rounded cusps. These teeth are used to crush and grind food, rather than bite it. Their unique dentition is important for their crustacean-based diet. In smooth dogfish, tooth replacement is related to body growth. They grow about 10 cm per every six rows of teeth replaced. That is an increase of 0.03 mm per
Istrian Coarse-haired Hound the French Griffon Vendeén with the Istrian Shorthaired Hound, a smooth-haired hound developed from both sight hounds and scent hounds. The breed first took part in a conformation show in Vienna in 1866. The origin of the Istrian Coarse-haired Hound has been disputed since the 1960s, with competing claims from Croatia and Slovenia. In 2003 the Fédération Cynologique Internationale recognized the breed as originating in Croatia. The dog is still used for hunting fox, rabbits, hare, and wild boar. Istrian Coarse-haired Hound The Istrian Coarse-haired Hound (, ) is a dog breed from Croatia, developed in the mid-19th century for