I love dogs! Huskies are a sled type dog used in the north. They are different from other sled dogs by their pulling style which is fast.
Sled dogs? How are they different from other breeds of dogs?
Sled dogs are different because they are used for transportation in arctic areas. They would haul supplies to areas that were otherwise inaccessible. 
OK, the dogs used for ice skating ?
HaHa Not quite. Sled dogs were often used as mail carriers in areas in Alaska and northern Canada.
OK ,more like errand dogs in cold regions?Are they intelligent dogs?
They would have to be intelligent I would believe. They are also used for recreational purposes and for racing contests. 
What do you know about the German Shepherd?
German Shepherds are a medium breed of dog that is classified as a working dog. Germany is their country of origin.
So you mean they evolved from Germany.I suppose we have the American Shepherd too