The Domestic Dog
The dog was domesticated more than 10,000 years ago and although it is not exactly known why there were encounters between a wild wolf and ancient man, it is thought it would have been sustained because it would have mutually benefited both species. It is possible that man may have come across a young wolf cub for example, who at that age would have been puppy like and been brought up and become part of the human pack. Having a semi tame wolf would be useful because of its acute sense of sight and smell, it would have shown loyalty with obvious hunting and guarding abilities. The partnership has continued throughout and where both provide each other with protection and companionship.
It is known for sure that all dogs, from the Irish Wolf Hound to the Jack Russell Terrier, have descended from the wolf. DNA testing has proven it. The reason dogs are so diverse is due to man’s carrying out selective breeding.
Although the body shape may be almost unrecognisable there are traits that exist between the dog and the wolf. These are a having a strong territorial behaviour, barking and growling, marking territory with urine, and loyalty to another member of the pack. Also, like all social animal’s dogs express their moods by the position of their ears, posture, position of the tails and making barking, snarling noises.
Scientific Illustrations of the Domestic Dog
Our scientific illustrations depict anatomy can this hidden beneath the skin. The purpose of illustrations of dog anatomy can be to supplement a body of scientific information, to be used for publishing and science text books and to independently convey a scientific message for educational purposes and for educational websites. The artwork is also used by veterinary pharmaceutical industries to promote a veterinary product from ear mite infection to health foods. Work also appears in animal anatomical text books to support the written documentation.
The Anatomy Facts about the Canine Ear
The canine ear is prominent both in its function and gives an insight into the how the dog is feeling both physically and emotionally by looking at its position or posture. It also demonstrates the dogs personality and character. From a veterinary standpoint, the ears are a good place to begin a physical exam to check for both specific and general diseases.
The anatomy of the ear can be divided into four parts of the ear flap (auricle or pinna); external ear canal (external auditory meatus); middle ear; and internal (inner) ear. The dog’s ear canal is considerably longer than its human counterpart, and after extending downward, it makes a sharp turn inward toward the eardrum.
The eardrum separates the external ear from the middle ear, containing three small bones within the middle ear, the malleus, incus, and stapes. The inner ear consists of two main parts: the cochlea (end organ for hearing) and the vestibule and semicircular canals (end organ for balance).
