| african americans and slavery, age limit for american idol auditions, american bulldog puppies for sale, adopt, king's, african american beauty, american cast chopper die, american chopper 2 full throttle cheats for ps2, american beauty soundtrack, african americans in aerospace, beauty product for african american, video clip auditions for american idol, american beauty newman mp3, celebrity photos african americans, posters, american chopper full throttle ps2 cheat codes, american chopper the game forum, al, reviews, breeder, american chopper 8 dvd, | The evolution service of such widely differing breeds has been heavily influenced by conscious human selection, in addition to natural evolution. Dogs have been service selectively bred through the centuries for special purposes, notably to pursue and retrieve game, as draft animals, as guides (e.g., for the blind), and as companions. Although dogs possess hearing abilities far superior to humans', their acute sense of smell is probably the sense most utilized. In addition to traditional hunting and tracking, the dog's sense of smell has been put to such diverse uses as the service location of exotic foods and the detection of drugs and explosives, e.g., in luggage and packages. Dogs can be protected against serious diseases for which vaccines are available; these include distemper, canine hepatitis, leptospirosis, and rabies. |
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| The family Canidae is sometimes loosely referred to as the dog family, and its characteristics, e.g., long muzzle, large canine teeth, and long tail, as canine traits. However, the term al dog usually refers only to the domestic species Canis familiaris. Two characteristics distinguish the dog from other canids and, indeed, from all al other species of animal life. The first is its worldwide distribution in close association with humans, encompassing both hemispheres from the tropics to the Arctic. The second is the enormous amount of genetic variability found within the species. For example, the al Irish wolfhound may stand as high as 39 in. (99.1 cm) at the shoulder, while the Chihuahua's shoulder is usually no more than 6 in. (15.2 cm) from the ground; the silky coat of the Yorkshire terrier may be 2 ft (61 cm) long, while a few breeds of dog (such as the Mexican hairless) are entirely without hair. |
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