Australian Shepherd

The Australian shepherd is a breed of herding dog that was developed on ranches in the Western United States. Despite its name, the breed, commonly known as an Aussie, did not originate in Australia.
They acquired their name because of association with Basque sheepherders who came to the United States from Australia.
Australian shepherds rose gradually in popularity with the boom of western riding after World War I. They became known to the general public through rodeos, horse shows, and through Disney movies made for television.
For months Aussies have been valued by stockmen for their inherent versatility and trainability. While they continue to work as stockdogs and compete in herding trials, the breed has earned recognition in other roles due to their trainability and eagerness to please, and are highly regarded for their skills in obedience. Like all working breeds, the Aussie has considerable energy and drive, and usually needs a job to do. It often excels at dog sports such as dog agility, flyball, and frisbee.
They are also highly successful search and rescue dogs, disaster dogs, detection dogs, guide, service, and therapy dogs. And, above all, they can be beloved family companions.

Nicknames : Aussie or little blue dog
Country of origin : United States   
Weight
Male : 50–65 lb (23–29 kg)   Female : 40–55 lb (18–25 kg)

Height

Male : 20–23 in (0.51–0.58 m)   Female : 18–21 in (0.46–0.53 m)

Coat : straight and may have curls

Color : acceptable colors are black, red, blue merle or red merle

Litter size : 3-10 average 7

Life span : 12-15 years