Dogs have a number of roles and are an important part of our society. Traditionally dogs have been used as companions and show dogs, even though today most dogs are used for other purposes such as hunting, protection and sport. The word “dog” actually comes from the German term “Dien”, which means dog in English.
The domestic dog is a domesticated and that is found distributed across the globe. The dog evolved from an extinct large, wolf-like wolf which was the ancestor of the domestic dog. It is thought that dogs spread out from Asia to North America at the same time as settlers came across the Bering Sea. They were able to adapt to their new way of life in the New World, but they eventually became distinct species all their own. Domesticated dogs differ in appearance depending on the type of breed that they are, although most are of a small muscular build. Some have short, compact bodies with long, tapered paws, while others have long, muscular legs and tails.
Domesticated dogs are known to be less aggressive than their wild ancestors, although they still can become aggressive if they feel threatened. They have also developed much better eyesight and hearing abilities than their wild ancestors, but are not nearly as intelligent as modern dogs. Although the dogs have adapted to the domestication process very well, some aspects of the process are unknown, such as how the dogs became aggressive toward people and other dogs, and why some dogs are more obedient than others. Many genetic studies have attempted to answer these questions. In essence, it appears that there may be a combination of genes, environment and behavioral traits that produce an individual dog, rather than a single genetic blueprint that applies to all dogs. Dog breeders and veterinarians have developed methods of breeding for specific characteristics, such as alertness, aggression, temperament and intelligence, in order to produce desirable results.