Dogs are usually treated as pets. Some are trained to entertain and do tricks. But the most noble work dogs can do is to save lives. These dogs are called working dogs. They are kept to do particular work such as guard, police and rescue. German shepherds, for instance, are dogs that know no fear. German shepherds are smart and super intelligent. They are known to guide the blind, search for missing people or things. They also rescue and herd dogs.
Newfoundland dogs are also part of the working dogs. They are good at saving drowning people especially children.