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
Majestic Tree Hound other dogs and has a noble and dignified expression. The creation of this breed is very recent, but the stem stock goes clear back to medieval northern France and the hounds of St. Hubert. The motives of this breed's creators were much the same as those who sponsor the American Blue Gascon Hound. These hunters wanted to save the large, cold-nosed, methodical working hound as a type in America, but the Majestic Tree Hound's forebear was the working Bloodhound. Big game hounds of the old Bloodhound/Talbot/St. Hubert type inhabited American soil for many years, and these were crossed with a