Dog Scientific Description

Dog Scientific Description

Domestic dog (class - mammals; row - predatory; family - canine) - the term is used for both domestic and homeless animals. Descend from wolves and jackals domesticated as far back as the Stone Age. The first mention of dogs appeared 100,000 years ago.

The dog is one of the faithful helpers of man. Its significance is enormous: property protection, protection of the owner, assistance in transportation, participation in police investigations, and the like. It is also an experimental animal species. Dogs are tested with various medical devices. And also they became the first animals "astronauts."

Dog breeds are hunting, service and decorative. Domestic dogs run wild relatively quickly. When crossed with wolves, they produce prolific offspring. Depending on the breed, the dogs have a different structure and color - from white and red to saturated black with different shades. The average dog is about 30-40 cm in height and up to 50 cm in length. Convenient physique allows her to develop good speed, be agile, capable of defense and defense. Therefore, they call dogs - "friends of man." As a result of selection, genetics managed to breed many new breeds. The structure, size, shape of the ears and tail, and the like, depend on this. All breeds of dogs have four legs with supporting fingers and claws. Two sets of teeth are arranged in such a way that it is convenient to consume food, in particular raw meat and bones. Also in dogs, such sensory organs as sense of smell and hearing are very finely developed. This makes them competitive among other animals.

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