There is no incongruity in the idea that in the earliest days of human habitation of this world he made a friend and companion of a species indigenous representatives of our modern dog, and that in return for their help in protecting him from wilder animals, and guarding his sheep and goats, he gave part of his life, a corner in his dwelling, and grew it to him and to ensure trust. Probably the animal was originally little else than an unusually gentle jackal, or search for an ailing wolf driven by its companions from the wild marauding pack refuge in a foreign land. One can easily imagine the possibility of the partnership from the circumstance of some helpless puppy brought home by the early hunters cherished and kept by the women and children.
Dogs introduced into the house as a toy for grown children to see themselves and are regarded as members of the family.
Dogs introduced into the house as a toy for grown children to see themselves and are regarded as members of the family.
In almost all parts of the world traces of an indigenous dog family are found, the only exceptions are the West Indian Islands, Madagascar, the eastern islands of the Malay Archipelago, New Zealand and the Polynesian Islands, where there is no evidence that any dog, wolf, fox or has existed as a true aboriginal animal. In the ancient Oriental countries, and usually among the early Mongolians, the dog remained savage and neglected for centuries, roam in packs, gaunt and wolf-like, as it wanders through the streets and under the walls of every Eastern city. It was not an attempt to lure them made in the human society or in order to improve compliance. It is not until we examine the records of the higher civilizations of Assyria and Egypt that we discover all the different varieties of canine form.
The dog was not greatly appreciated in Palestine, and in both the Old and New Testament is commonly spoken with scorn and contempt as "impure." Even the familiar reference to the Sheepdog in the Book of Job "But now they are younger than I am in derision, whose fathers I disdained to have set with the dogs of my flock" is not without a hint of contempt, and it is significant that the only biblical allusion to the dog as a companion of man recognized in the apocryphal Book of Tobit (v. 16), occurs "And they went on both, and the young man the dog with them."
The large variety of different breeds of dogs and the great differences in their size, points, and general appearance are facts which it hard to believe they could make had a common ancestry. One thinks of the difference between the Mastiff and the Japanese Spaniel, the Deerhound and the fashionable Pomeranian, the St. Bernard and the Miniature Black and Tan Terrier, and is in considering the possibility of its loss came to from a common ancestor. But the differences are not greater than that between the Shire horse and the Shetland pony, the Shorthorn and Kerry cattle, or the Patagonian and the Pygmy, produce and know all dog breeders, how easy it is, a variety in type and size of studied selection.
To properly understand this question it is first necessary to verify the identity of structure in the wolf and the dog. This identity of structure is best in a comparison of the bone system, or skeletons of the two animals that are similar to each other so that their implementation will not be recognized as easily be investigated.
The spine of the dog consists of seven vertebrae in the neck, back thirteen, seven in the loins, three sacral vertebrae and 20 to 22 in the tail. In both the dog and the wolf there are thirteen pairs of ribs, nine true and four false. Everyone has forty-two teeth. They both have five front toes and four back legs, while outwardly the common wolf has so much to the appearance of a large, bare-bones dog that used a popular description of the one for the other.
Their habits are different. The Wolf of the natural voice is a loud howl, but when confined with dogs he will learn to bark. Although he is carnivorous, he will also eat vegetables, and if he gets sick nibble grass. In the chase, a pack of wolves are divided into parties on the trail of the quarry, the others from intercepting their retreat, exercising a significant strategy, a property that is exhibited by many of our hunting dogs and terriers when hunting in teams.
Another important point of resemblance between the Canis lupus and Canis familiaris lies in the fact that the time of pregnancy in both species 63 days. There are three to nine boys in a wolf's litter, and these are blind for 21 days. They are suckled for two months, but at the end of this time they can eat meat for half they spit out by her mother digested or even her father.
Born in dogs of all regions closely approximate size, color, shape and habit of the native regions of the Wolf. From this most important circumstance there are lot saw many instances to allow of his being as a mere coincidence. Sir John Richardson, writing in 1829 observed that "the similarity between the North American wolves and domestic dogs of the Indians so large that the size and strength of the wolf seems to be the only difference.
It has been suggested that the one incontrovertible argument against the lupine relationship of the dog, the fact that all domestic dogs bark, while all wild Canidae express their feelings only by howls is. But the difficulty is not as great as it seems to know when we acquire the jackal, wild dog and wolf pups reared by bitches readily the habit. On the other hand, domestic dogs allowed to run wild forgot to bark like, while some who have not learned a way to express themselves.
The presence or absence of the habit of barking can not be regarded as an argument in deciding the question of the origin of the dog. This stumbling block consequently disappears, leaving us in a position to agree with Darwin, whose final hypothesis was that "it is very likely that the domestic dogs of the world from two good species of wolf (C. lupus and C. latrans) and have two or three other doubtful species of wolves namely, the European, Indian and North African forms by at least one or two South American species dogs, of different races or species of jackal, and perhaps from one or more extinct species "and that the blood of these in sometimes mixed together, flows in the veins of our domestic breeds.
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