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Dog BreedsDogs have been selectively bred for thousands of years, sometimes by inbreeding dogs from the same ancestral lines, sometimes by mixing dogs from very different lines. Initially the selections would have centered on domestication and useful qualities such as hunting ability. Later, dogs were also selected to give attractive and distinctive forms resulting in a vast variety of types. The process continues today, resulting in a tremendous variety of dog breeds. Dog breeds can be divided into different categories, such as: Hunting Dogs
Working (or Utility) DogsToy DogsA toy dog is a very small dog kept as a pet. Companion DogsCompanion dog usually describes a dog that does not work, providing only companionship as a pet, rather than usefulness by doing specific tasks. Many of the toy dog breeds are used only for the pleasure of their company, not as workers, but any dog can be a companion dog
Generally, before a type of dog can be recognized as a breed, it must be
shown that mating a pair of that type always produces dogs that have the same
characteristics as the parents, usually both in appearance and in behavior.
This is known as breeding true. There are many issues concerning what is
considered breeding true.
This article is licensed under the GNU Free Documentation License. It uses material from Wikipedia and from Wag-Dog.com
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