The Shetland Sheepdog, affectionately called Sheltie, descends from the Rough Collie, reduced in size in the Shetland islands. It really seems a perfect miniature of the current Rough Collie. 
“A miniature show Collie” perfectly describes the Shetland Sheepdog; this is a small, long haired working dog, with great beauty, a noticeably symmetrical outline and refinement close to perfection. Invariably, the Shetland stands, ideally, at 37 cm in males; 35.5 cm in females. A variation in these measures in undesirable. The refined and expressive head has an elongated snub wedge shape, narrowing slightly from the ears to the nose; the correct expression is achieved by perfection in the balanced parts. The ears are small and flexible, moderately wide at the base, placed quite close to each other at the tall part of the skull, with the dog at ease, they are pulled back, with the tips falling forward when attentive (semi erect) – they should never be dropped, raised, turned or bat like - . The eyes are medium sized, almond shaped and placed oblique; dark brown or blue colored, in merle colored specimens both eyes can be blue. Light but defined stop, not prominent or undefined. The skull is flat, not round; the cheekbones smooth, not prominent; the muzzle well rounded, not turned up. The neck well arched and the chest deep, reaching the tip of the elbow, not narrow or wide, the back is straight and not too long or too short, not sunken or carped; the ribcage well formed, not flat or barrel shaped. The tail is long enough and reaches at least the hock, provided with abundant hair and has a slight upward curve. With the dog in movement it can be carried slightly raised, but never over the back and curled. The forelegs should have enough angulations, with good forearm length. The coat is double, with long external hair, straight, rough; the internal undercoat is short, soft and dense. The nape and chest have abundant hair. Short and straight coats, soft or silky hair and undercoat lack is flaw. The color can be sand, tricolor, merle blue, black and white, and black and tan. Diluted colors are not desirable, nor are white spots in the body as well as brindles.
WHO IS IT RIGHT FOR                   
A calm, well socialized puppy will be the ideal company Shetland. The breed is excellent as a family dog, gentle with children. The Shetland tends to be an active dog, for which it needs to be occupied (or plenty of play). Have in mind that the Shetland is a vocal dog and that its bark is sharp – save yourself problems and teach it to not bark early. Easy to teach, the Shetland is adaptable and tolerates children that arrive in the family later; it will even protect them, acknowledging that they also belong to their flock.
When choosing a puppy, the character, and not the color, should be your biggest concern. The puppies, as well as the mother, should be kind and obedient.
If raised with care and soft discipline, the Sheltie puppy will never lose its natural glow and will become an adorable company animal, perfectly behaved. It is an intelligent breed and perfectly perceives its owner’s feelings and mental state. Own. Sherry Lee.
The weigh at birth is between 113 and 280 g. In general, the color at birth is a good indication of the adult color, except for the sand, which is very dark and can lighten with age, as well as tricolor and merle blue which usually has very little or no sand at birth, and which should appear after two or three years. The color is a matter of personal taste, but specimens with more than two thirds of white, and sand colored with blue eyes should be avoided. Before the fur change, the color can turn dull and gray. Two or three sheddings of this hair can be necessary until the adult hair emerges in full. During dentition, ears can raise or drop, and can need help, be it in weights or staples. Testicles can take up to 12 months to descent.
It is not for the child that is weeping for a Shetland; the Sheltie doesn’t tolerate unmanageable children. However, older children, who can respect the dog, will the Sheltie’s best friend.
A well bred Shelton is a resistant, very intelligent dog that can live well past ten years – it is known that Shetlands have lived more than 16 years -. Skin problems seem to increase, and the profuse coat requires plenty of brushing, especially during shedding. Special arrangements, such as trimming, are minimal. The breed’s good nature makes training a pleasure, and the owner should make the most of it. Eye problems are a major concern. Breeders consider eye problems eliminated, but the future owner should consider that the breed can suffer anomalies, such as progressive retinal atrophy, cataracts, ectasia syndrome (a retinal globe problem) and triquiasis. Other problems, all of them with limited incidence, include hip dysplasia, thyroid deficiency, epilepsy, solar nasal dermatitis (“Collie nose”), cryptorchidism, deafness, pemphigus, Von Willenbrand and dwarfism. 
Make sure of testing the blue merle puppy ear calling it or clapping. This color is more deafness prone than others.