There is no incongruity in the idea that in the first period to the home of the people in this world is a friend and companion of a kind of aboriginal representative of our modern dog, and that in return for their help to protect wildlife and the monitoring of their sheep and goats, he gave some of their food, a corner in his house, and came to trust and care. Probably the animal was originally little more than an exceptionally smooth jackal or an ailing wolf driven by its companions from the marauding pack refuge in a foreign environment to search. It can well imagine the possibility of the association that some defenseless puppies are home to hunters, who will soon be treated and brought care of women and children.
The dogs grow up in the house as a toy for children, would to be considered as members of the family and should be In almost all regions in the world traces of an indigenous dog family are the only exceptions to the Caribbean, Madagascar, the eastern islands in the Malay Archipelago, New Zealand and Polynesia, where there is no sign that any dog, wolf or fox has existed as a true aboriginal animal . In the old countries of the East, and more generally in the early Mongolians, the dog remained savage and neglected for centuries, roam in packs, and thin like a wolf, for he now goes through the streets and walls all cities del Este. He was not disappointed in the company of people or to improve the handling. It is not until one examines the records of higher civilizations of Assyria and Egypt, to verify the existence of different varieties of canine form.
The dog was not greatly appreciated in Palestine and in the Old and New Testament, which is widely spoken with scorn and contempt as a "filthy beast". Even the familiar reference to the pastor in the Book of Job "But now they are younger than I joke, whose father, I would disdain to have made with my Shepherd" is not without a hint of contempt, and it is significant that the only biblical allusion to the dog as a companion of man himself recognizes in the apocryphal Book of Tobias (V. 16): "And they went out and the young dog."
The variety of different dog breeds and the large differences in size, points and general appearance are facts which are hard to believe he might be able to have had a common ancestor. One thinks of the difference between the Mastiff and the Japanese Spaniel, Deerhound and fashion-Pomeranian, the St. Bernard and the Miniature Black and Tan Terrier, and is helpless in the consideration of the possibility of descent from a common ancestor. However, the difference is not greater than that between the horse and the Shetland Pony Shire, Shorthorn cattle, and Kerry, or know of Patagonia and the Pygmies, and all breeders, how easy it is to produce a variety of type and level of study selection.
To understand these questions we first need the identity of structure in the wolf and the dog. This identity of structure is best in a comparison of the skeletal system, or skeletons, two animals, each other, so that their inclusion would be similar to recognize not easily be studied.
The spine of the dog consists of seven cervical, thirteen in the back, seven in the loins, three sacral vertebrae, and twenty Twenty-two queue. false in dogs and wolves, there are thirteen pairs of ribs, nine true and four. Everyone has forty-two teeth. Both have five toes forward and four steps backward, while outside the common wolf has so much the appearance of a large dog, Bare Bones, a description that would help people to another.
Neither their different habits. natural voice of the wolf's howl, but when he learn with dogs that bark. Even if it is a carnivore that eats plants, too, and in case of sickness, the grass will bite. In the chase, a pack of wolves in several parts, one on the way to the career gap that others try to intercept its retreat, exercising a significant strategy, a trait that is presented by several of our dogs, and terriers in the fun the hunt in teams.
Another important point of resemblance between the Canis lupus and Canis familiaris lies in the fact that the gestation period for both types of sixty-three days. There are eight fifty-seven boy in a wolf's litter, and they are blind twenty-one days. They are suckled for two months, but after this time are able to eat half the meat they digested flushed from her mother or even his master.
Dogs from all regions approximate closely in color size, shape and habit native wolf in these regions. In this circumstance, the most important, there are too many ways to allow his character as a mere coincidence. Sir John Richardson, writing in 1829 noted that "the similarities between wolves and domestic dogs in North America the Indians so great that the size and strength, the wolf seems to be the only difference.
It was suggested that the argument against an undeniably lupine dog relationship that all domestic dogs bark, while all wild Canidae their feelings only by howls. But the problem is not as great as it sounds because we know that jackals, wild dogs, wolves and pups from bitches to acquire easily grown the habit. On the other hand, domestic dogs can forget running, barking furiously, while people who have not yet learned to speak.
The presence or absence of the habit of barking can be considered as an argument to decide the question of the origin of the dog. This stumbling block disappears Consequently, it remains for us in a position with Darwin, whose final hypothesis was that "it is likely that domestic dogs originated in the world of two good species of wolf (C. lupus and C. latrans agree), and two or three other doubtful species of wolves namely, the European Community, India and North African forms of the dog at least one or two species in South America from different races or species of jackal, and perhaps one or more extinct species "and that the blood of these mixed in some cases, flows through the veins of our domestic breeds.
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