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
Ibizan Hound stationary position in rough and often heavily covered ground. They should have excellent scent-tracking abilities, give tongue at the right time when approaching the game closely, and otherwise be silent so that they can locate the game by sound. The Ibizan Hound is similar in function and type to several breeds, such as the Pharaoh Hound, the Cirneco dell'Etna, the Portuguese Podengo, and the Podenco Canario. The Ibizan Hound is the largest of these breeds, classified by the Fédération Cynologique Internationale as primitive types. It is believed the Ibizan Hound evolves from the "tesem", the ancient Egyptian hunting dog. Representations