Please see here posting on a small dog.
a small dog photoset
A dog (the scientific name is Canis lupus familiaris) is a four-legged mammal from a category of dogs, a subspecies of a wolf that were domesticated nearly 15, a new subspecies of a wolf that had been domesticated 15 000 years back and was the first domesticated animal. Since then dogs have been spread around the globe and are accompanying people generally in most of days gone by and existing cultures, such as for example working animals, guards, hunting assistants or pets just. In accordance with recent rough estimates, the entire world people is between 700 mil and 1 billion canines, with the biggest number of predators on Earth.
For the activities of mating, education and informal study of dogs, a standard term kinology is used, and canines are usually studied by zoologists scientifically.