Malamute or Sheltie: The Cleverest Dog Here Is Also the Loudest

This is the most practically important paragraph on the page, and it has nothing to do with temperament.

MDR1 is a gene that produces a protein acting as a pump at the blood-brain barrier, keeping certain drug molecules out of the brain. A variant common in herding breeds — collies, Shelties, Australian Shepherds and their relatives — produces a non-functional version of that pump. In an affected dog, drugs that would normally be excluded accumulate in the central nervous system, and normal doses can cause severe neurological signs or death.

The drugs involved are not exotic. They include ivermectin and related antiparasitics at higher doses, some worming and mite treatments, loperamide, several chemotherapy agents and certain sedatives and anaesthetic drugs. Standard heartworm preventive doses are generally safe, but treatment doses are not, and that distinction is exactly where accidents happen.

The good news is that this is entirely preventable. A cheek-swab DNA test identifies a dog's status, it is inexpensive, and it only ever needs doing once. Every Sheltie should be tested, the result should be recorded on the dog's veterinary file, and the owner should mention it at every practice, out-of-hours clinic and boarding kennel — including ones that ought to know. A tag on the collar is not excessive.

Ask a breeder for the parents' MDR1 status alongside eye certification. A dog with two normal copies is unaffected, one copy carries partial risk, and two variant copies is the high-risk category.

The Malamute has no equivalent. Its anaesthetic considerations are the ordinary large-breed ones, and no common medication is contraindicated by breed.

The Sheltie's own temperament keywords include vocal, and the 5/5 rating is not an exaggeration.

Herding dogs bark as a tool. Moving sheep on open Shetland hill ground meant using voice at distance, and the breed was selected for a dog willing to use it. The modern consequence is a dog that barks at movement, at arrivals, at the doorbell, at dogs passing the window, at the vacuum cleaner, and at things the owner cannot identify. It is a high, sharp, carrying bark, and it is self-reinforcing — a Sheltie that barks at the postman and watches the postman leave concludes that barking works.

This matters more than most temperament traits because it determines whether the dog fits your building. In a detached house with a garden it is a manageable quirk. In a flat with shared walls or a terrace it is the thing most likely to end the arrangement.

It is also more trainable here than in most vocal breeds, because the same dog rates 5/5 for trainability. The measures that work: a properly trained quiet cue taught before the habit sets, physically blocking sight lines to the street and the front path, meeting the exercise requirement so the dog is not patrolling out of boredom, and giving it a job — Shelties excel at agility, obedience, rally and scent work, and a working Sheltie barks less than an idle one.

What does not work is shouting, which the dog reads as joining in.

The Malamute at 3/5 barks comparatively little but howls, and a howl carries further than a bark. In practice the Malamute is quieter more of the time and louder on the occasions it decides to be — but it should not be in a flat at all, for reasons of exercise rather than noise.

People underestimate a Sheltie's coat because the dog is small. At 4/5 grooming and 4/5 shedding, described as heavy seasonal, a 20 pound Sheltie produces a startling amount of hair.

The structure is a harsh straight outer coat over a short dense woolly undercoat, with a pronounced mane, feathering on the legs and a full tail. The undercoat sheds moderately year-round and then releases wholesale twice a year over two or three weeks. The tools are the same as for the Malamute — an undercoat rake and a slicker, worked in sections down to the skin — for two or three sessions a week, more during a blow. The mane, behind the ears, the britches and the feathering are where mats form, and on a long-coated small dog they form quickly.

The same rule applies as for every double coat: do not shave it. It insulates in both directions, and regrowth after a shave is frequently patchy and permanently altered in texture. A tidy-up around the feet, sanitary area and ear edges is fine.

The Malamute's coat is the bigger job in absolute terms at 5/5 shedding and very heavy year-round, with two dramatic blows. Malamute wool is dry and drifts into clumps that sweep up; Sheltie hair is finer and works into fabric more.

Proportionally, though, the two are close. Anyone choosing a Sheltie to avoid the Malamute's hair is choosing a smaller volume of the same problem, not a solution to it. If a hair-free house is the goal, both breeds belong off the list.

The Sheltie is one of the most trainable breeds there is, and that is the main reason to want one. It learns fast, retains sequences, works for interaction and thrives on having something to do. Agility, obedience, rally, tricks, scent work and herding all suit it, and its size makes all of that accessible in a way a large breed does not.

The temperament keywords are bright, sensitive, vocal and devoted, and sensitive is the one to plan around. Shelties are soft dogs. Harsh handling produces shutdown rather than resistance, loud households can overwhelm them, and a bad experience sticks. The training that works is upbeat, clear and generous.

The 2/5 with strangers is the herding breed's reserve, and it needs deliberate work. An unsocialised Sheltie does not become aggressive so much as fearful — backing away, barking from behind furniture, or shrinking from hands. Early, positive, unhurried exposure to new people, places, surfaces and noises through the first year is what produces a confident adult. Do not force greetings; let the dog approach.

With children it rates 4/5 against the Malamute's 5/5, and the practical caution is herding instinct: circling, chasing and occasionally nipping at running heels. It redirects well onto ball work and games if addressed early.

With other dogs the Sheltie is easy at 4/5 against 3/5.

On solitude both rate 2/5. A Sheltie left alone tends toward anxious vocalising, which in a flat is the compounding version of the barking problem. The Malamute digs instead.

On beginners the Sheltie's 4/5 against 2/5 is fair. It is forgiving, portable and eager, and the errors that matter are under-socialising and letting the barking establish itself.

Beyond MDR1, the Sheltie's list is short and eye-heavy.

Collie eye anomaly is a congenital malformation of the tissues at the back of the eye. It is present at birth rather than developing later, it ranges from mild changes that never affect vision to serious defects causing retinal detachment and blindness, and it is diagnosed by an ophthalmologist examining puppies at around six to eight weeks — the window matters, because some mild changes become harder to see in older dogs. There is also a DNA test. Ask a breeder whether the litter was eye-checked at the right age and what the parents' DNA status is.

Dermatomyositis is an inherited inflammatory condition affecting skin and sometimes muscle, showing as crusting and hair loss around the face, ear tips and the tips of the feet and tail in young dogs, sometimes with muscle wasting in severe cases. It is more common in Shelties and Collies than in other breeds and is worth asking about.

Hypothyroidism and patellar luxation complete the list, both manageable and both easy to identify.

On cost the Sheltie is one of the cheapest dogs compared here: $80–150 a month against $150–300, and $1,100–2,300 in the first year against $2,000–4,000, at cost level 3/5 against 4/5. Food and weight-based veterinary items are all small-dog prices, and the coat costs nothing but time.

Lifespan is 12 to 14 years against 10 to 14 — a modest edge, and unusually similar for two breeds this far apart in size.

The Malamute's health list is longer and heavier: hip and elbow dysplasia, bloat, hypothyroidism, epilepsy, progressive retinal atrophy, hereditary cataracts, zinc-responsive dermatosis and inherited polyneuropathy.