The dog is a domestic animal. This four-footed pet has a tail, sharp claws and sharp teeth. It eats rice, bread, meat, fish, milk etc. It has thick hair, but some species possess thin hair. It may be of different colours-white, brown, black, or a mixture of these colours. Dogs are of different species and different sizes and looks.
The dog is a faithful animal. It can easily accept good training. At night, it guards its master's house. It accompanies its hunter master to the jungle to take active part in hunting, by tracking down the game. It has a very strong sense of smell. It is specially trained by the police or military departments for smelling the traces of crimes and finding out the culprit, either indoor or outdoor.
The dog is generally found to be treated in the human society as a member of the family, as they are useful to man in many ways.
Big size dogs, such as Alsesians. Golden Retrievers, etc, sometimes resemble wolves, tigers or panthers. With training, they are ferocious, as and when necessary. The small size dogs are tamed mainly for pleasure of the master, because they are not so strong as to fight or defend themselves from stronger animals, thieves or rogues. But some of them look pretty and are loved as 'darlings'.