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Species Profile

Newfoundland

Canis lupus familiaris

Built for the surf, born to save
Pandas/Shutterstock.com

Newfoundland Distribution

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Origin Location

This map shows the native origin of the Newfoundland. As a domesticated species, they are now found worldwide.

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Size Comparison

Human 5'8"
Newfoundland 2 ft 3 in

Newfoundland stands at 39% of average human height.

Black Newfoundland dog in flowers

At a Glance

Domesticated
Also Known As Newfie, Newf, Terre-Neuve, Terranova
Diet Omnivore
Activity Cathemeral+
Lifespan 4 years
Weight 75 lbs
Status Not Evaluated
Did You Know?

Newfoundlands were developed alongside Newfoundland fishermen to haul nets and rescue people from cold water.

Scientific Classification

The Newfoundland is a large working dog breed developed for water work and hauling, historically associated with fishermen in Newfoundland. It is known for strong swimming ability, heavy bone, and a calm, gentle temperament.

Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Carnivora
Family
Canidae
Genus
Canis
Species
Canis lupus

Distinguishing Features

  • Large, heavy-bodied build with substantial bone
  • Dense, water-resistant double coat (often black, brown, gray, or black-and-white 'Landseer')
  • Webbed feet and strong swimming ability
  • Broad head with gentle expression

Physical Measurements

Males and females differ in size

Height
2 ft 4 in (2 ft 3 in – 2 ft 6 in)
2 ft 1 in (1 ft 12 in – 2 ft 2 in)
Length
4 ft 5 in (3 ft 11 in – 4 ft 11 in)
4 ft (3 ft 7 in – 4 ft 5 in)
Weight
150 lbs (132 lbs – 176 lbs)
106 lbs (93 lbs – 119 lbs)
Tail Length
1 ft 4 in (12 in – 1 ft 6 in)
1 ft 4 in (1 ft 2 in – 1 ft 6 in)
Top Speed
25 mph
running

Appearance

Primary Colors
Secondary Colors
Skin Type Thick canine skin beneath a heavy, water-resistant double coat (oily guard hairs, dense undercoat); prone to hot spots if damp and poorly dried.
Distinctive Features
  • Domestic dog (Canis lupus familiaris) selectively bred from the wolf-like base species for water work and hauling.
  • Very large, heavy-boned working build with broad chest and substantial neck/shoulders.
  • Water-rescue adaptations: strongly webbed feet, powerful swimming stroke, and excellent buoyancy.
  • Dense, water-repellent double coat; sheds heavily and mats without routine brushing.
  • Otter-like, thick tail used as a rudder while swimming.
  • Broad head with short muzzle; loose lips often cause notable drooling.
  • Calm, gentle, people-oriented temperament typical of the breed; less wary than wild canids.
  • Slow to mature; adolescent clumsiness common due to rapid growth and size.
  • Heat intolerance risk because of coat and mass; needs shade, cool water, and limited hot-weather exertion.
  • Common health concerns: hip/elbow dysplasia, cruciate injuries, and osteoarthritis risk from size.
  • Cardiac concerns: subaortic stenosis and other congenital heart disease occur in the breed.
  • Gastrointestinal emergency risk: gastric dilatation-volvulus (bloat); avoid large meals and hard exercise after eating.
  • Other breed-linked issues: cystinuria (urinary stones), eyelid disorders, and skin hot spots/ear infections from moisture.
  • Care requirements: frequent brushing/deshedding, thorough drying after swimming, nail/ear care, and drool management.
  • Exercise needs: steady low-impact activity and swimming; avoid excessive jumping/stairs during growth for joint protection.

Sexual Dimorphism

Males are typically taller and markedly heavier with a broader skull and more pronounced ruff. Females are smaller, often more refined in head and bone, while keeping the same coat type and water-working structure.

  • Larger overall frame with heavier bone and broader chest.
  • Broader head and thicker neck/ruff appearance.
  • Often more pronounced drooling due to larger lips/jowls.
  • Slightly smaller, more refined head and lighter bone.
  • Often a more streamlined outline while still powerfully built.
  • May carry less pronounced ruff than males.

Did You Know?

Newfoundlands were developed alongside Newfoundland fishermen to haul nets and rescue people from cold water.

They have noticeably webbed feet-more pronounced than many breeds-helping them paddle efficiently.

A Newfoundland's dense, water-resistant double coat and oily outer guard hairs help shed water and insulate.

Many Newfoundlands instinctively "life-guard," positioning themselves between swimmers and shore.

The black-and-white color pattern is nicknamed "Landseer," after artist Sir Edwin Landseer's famous paintings.

Because they were bred for strength and steadiness, they often excel in water rescue and drafting (cart pulling).

Their calm, patient temperament helped earn them the reputation of a classic "nanny dog" (still requiring supervision with children).

Unique Adaptations

  • Webbed feet for propulsion and stability in water-an amplified trait shaped by selective breeding within domestic dogs.
  • Large body mass, heavy bone, and strong neck/shoulders suited to towing and hauling tasks.
  • Dense double coat with water-shedding outer layer; provides insulation in cold, wet conditions but increases heat sensitivity in warm climates.
  • Broad chest and powerful lung capacity supporting sustained swimming and towing.
  • Temperament selection: unusually steady, people-focused demeanor compared with the ancestral gray wolf, reflecting domestication and working partnership with humans.

Interesting Behaviors

  • Water-rescue response: some will swim out, take a wrist/hand, and tow a person back with steady strokes.
  • "Leaning" and close body contact: many seek physical closeness and will brace against people like a living bolster.
  • Soft-mouth carrying: a tendency to pick up and carry objects carefully, useful for hauling lines and gear.
  • Drafting instincts: willingness to pull carts or sleds at a slow, powerful pace.
  • Watchful calm: often observant rather than reactive, but may place themselves between family and perceived risk.

Cultural Significance

The Newfoundland dog is tied to Newfoundland and Atlantic Canada; it helped fishermen, hauled gear, and saved people from water. In art and stories it stands for strength and rescue. Today it helps in water-rescue trials, therapy, and as a family companion.

Myths & Legends

Sailors' folklore long claimed the Newfoundland was a cross between a dog and an otter or seal-an origin story inspired by its webbed feet, swimming talent, and sleek movement in water.

A popular Titanic-era legend tells of a Newfoundland named "Rigel" who supposedly barked to alert rescuers to survivors-an enduring seafaring tale tied to the breed's lifesaver reputation.

19th-century stories of heroic "Newfies" saving drowning people became part of coastal oral tradition in Atlantic communities, reinforcing the breed's near-mythic status as a natural rescuer.

The "Landseer" Newfoundland, celebrated in Sir Edwin Landseer's paintings, became a romantic symbol of loyalty and noble guardianship in Victorian popular culture.

Wartime lore in Canada remembers "Gander," a Newfoundland credited with saving soldiers by seizing and carrying away a live grenade in 1942-retold as a tale of self-sacrifice and courage.

Conservation Status

NE Not Evaluated

Has not yet been evaluated against the criteria.

Population Stable

Life Cycle

Birth 7 pups
Lifespan 4 years

Lifespan

In the Wild
2–8 years
In Captivity
8–10 years

Reproduction

Mating System Promiscuity
Social Structure Managed Domestic
Breeding Pattern Transient
Fertilization Managed Selective
Birth Type Internal_fertilization

Behavior & Ecology

Social Pack Group: 4
Activity Cathemeral, Diurnal, Crepuscular
Diet Omnivore Fish (especially oily fish like salmon) and meat-rich foods

Temperament

Calm, gentle, and patient; notably tolerant of handling compared with many dogs.
Affectionate and people-oriented; prefers proximity, leaning, and physical contact for reassurance.
Steady and low-reactive; slower to escalate, but will use size to block or guard family.
Working heritage favors cooperative pulling/retrieving; enjoys structured tasks more than repetitive drills.
Typically good with children and other pets; social outcomes vary with early exposure (HUBS variation).
Moderate energy: benefits from daily walks plus swimming or water retrieves; avoids frantic hyperactivity.
Heat-sensitive due to heavy coat; behavior improves with cool environments and water access.
Training responds best to calm, positive reinforcement; harsh methods can cause shutdown or stubbornness.
Care requirement: heavy shedding and drool; regular grooming and skin/ear drying after swimming.
Health-linked behavior notes: joint issues (hip/elbow dysplasia, cruciate injury risk) may reduce play tolerance; manage weight.
Cardiac risk (notably subaortic stenosis) can limit stamina; monitor exercise intensity and fatigue signs.
Bloat/GDV risk in deep-chested dogs: avoid intense activity around meals; feed management supports comfort.

Communication

Deep, low-frequency bark used more for alerting than constant noise.
Soft grumbles and 'talking'/wooing sounds during greetings or anticipation.
Whines and sighs to solicit attention, proximity, or to signal discomfort.
Growls as clear boundary-setting; often preceded by body blocking and stillness.
Leaning, sitting on feet, and full-body contact as affiliation signals Breed-typical
Slow tail wag, relaxed mouth, and soft eye contact when friendly; still posture when guarding.
Body blocking and positioning between family and novelty; protective without sharpness when well-socialized.
Pawing or nudging hands/objects to request interaction or assistance Common in working lines
Retrieving/carrying objects to initiate play or 'help'; may present items rather than chase repetitively.
Scent investigation and marking typical of domestic dogs; less roaming drive than many working canids.

Habitat

Coastal Beach Rocky Shore River/Stream Lake Pond Wetland Swamp Marsh Coniferous Forest Deciduous Forest Woodland Grassland Tundra Mountain Urban Suburban Agricultural/Farmland Open Ocean +13
Biomes:
Marine Freshwater Wetland Boreal Forest (Taiga) Temperate Forest Temperate Rainforest Temperate Grassland Tundra Alpine Mediterranean Desert Cold Desert Hot Savanna Tropical Dry Forest +8
Terrain:
Coastal Island Riverine
Elevation: Up to 16404 ft 3 in

Ecological Role

Human-associated omnivorous domestic canid (working/companion breed)

Supports human livelihoods and safety via water rescue and working roles (historically fishermen; modern lifesaving/therapy/service work) Acts as a human-managed consumer of animal- and plant-derived foods, linking human food systems to domestic-animal nutrient cycling Local scavenging control when managed (consumes food waste under human supervision), though primarily dependent on provided diets Social/ecological function as a companion animal influencing human activity patterns (walking, outdoor recreation) and community well-being

Diet Details

Main Prey:
Domestic livestock Fish and seafood Organ meats Animal fats and rendered meals Eggs
Other Foods:
Cooked grains and starches Vegetables Fruits Fiber sources

Human Interaction

Domestication Status

Domesticated

Canis lupus familiaris is the fully domesticated dog, bred from the gray wolf for behavior, work, and form. The Newfoundland, from Newfoundland, is a giant working breed used by fishermen for water rescue, hauling nets and carts. With webbed feet, a thick double coat, great strength, and a calm, gentle nature, it works as companion, therapy, draft, and water-rescue sport.

Danger Level

Low
  • Size/strength-related accidental injury (knocking over children/elderly, leash pulling) more likely than intentional aggression
  • Protective behavior may occur if poorly socialized or mishandled, but breed-typical temperament is gentle
  • Water-rescue instinct can lead to interfering with swimmers (grabbing/towing) if not trained/managed
  • Zoonotic/general dog risks: bites are uncommon for the breed but possible; parasites and bacterial transmission via poor hygiene; allergen exposure (not hypoallergenic)

As a Pet

Suitable as Pet

Legality: Newfoundland (Canis lupus familiaris) dogs are usually legal as pets in the U.S. and most places. Rules often come from housing, insurance, landlords, homeowner groups, or transport limits, and some towns require leashes or muzzles for big dogs.

Care Level: Experienced

Purchase Cost: $1,500 - $3,500
Lifetime Cost: $25,000 - $80,000

Economic Value

Uses:
Companion animal (family pet) Working dog (water rescue, draft/hauling, carting) Service/therapy and emotional support contexts (temperament-suited, not hypoallergenic) Sports and competitions (water work trials, drafting, conformation) Breeding and pedigree markets Veterinary and pet-care services demand (giant-breed nutrition, orthopedic care)
Products:
  • Puppy sales from reputable breeders; adoption/rescue placements
  • Training services (obedience, water work, draft/carting)
  • Specialized gear (giant-breed crates, harnesses, life jackets, carts)
  • Grooming services and tools (heavy shedding/double coat management)
  • Giant-breed food and joint-support supplements
  • Veterinary services commonly utilized: orthopedic management, cardiology screening, emergency bloat care

Relationships

The Newfoundland (or the Newfie for short) is a very talented work and guard dog that originated from the Canadian province that bears its name. It was bred by early settlers to save drowning fishermen from the cold, frigid waters around Newfoundland; the webbed feet and thick fur made it an ideal rescue dog.

The breeding process possibly involved dogs such as the Great Pyrenees, Portuguese Water Dog, Leonberger, and St. Bernard, all brought over from Europe. The results were the Lesser St. John’s Dog, which developed into the Labrador Retriever, and the Greater St. John’s Dog, which became the Newfoundland.

Most of the Newfoundland’s physical and behavioral characteristics were established by the 17th century: the broad skull, the large snout, the massive frame, and the droopy ears and skin around the face.

The thick, heavy double coat of fur is typically all-black, brown, or gray. There is also a black and white version called a Landseer.

Black Newfoundland running in water

The Newfoundland is a large dog with a muscular build that is a good family dog.

3 Pros and Cons of Ownership

ProsCons
Excellent strength
This muscular breed is an excellent work and guard dog.
Immense weight
The Newfoundland is a real beast to manage.
Friendly and devoted
The Newfoundland is an affectionate companion for adults and children alike.
Health problems
This breed is prone to several health issues that contribute to a relatively poor lifespan.
Patient demeanor
This breed is diligent, steadfast, and easy to train.
High separation anxiety
You should not leave your Newfoundland alone for long periods of time.

Size and Weight

The Newfoundland has a large, muscular build that makes it well-suited for difficult tasks. Males are larger than females and stand 28 inches at the shoulder, while females are typically 24 inches high. Males weigh 130 to 150 lbs, with females weighing 100 to 120 lbs.

Temperament

Landseer Newfoundland

This Landseer is a black and white Newfoundland that also has the kind and gentle personality of the breed.

The Newfoundland is a big, lovable companion with a kind and gentle personality. Owners have frequently said that it possesses a sweet and modest trait that adapts well to almost any lifestyle (though it does require enough living space to accommodate its massive body).

This breed is not a troublemaker, but it should not be left alone for long periods of time, either indoors or outdoors, due to its separation anxiety. If you want a dog that can be left to its own devices, then this is probably not the breed for you. As long as you shower it with enough love and attention, the Newfie has a calm and relaxed behavior. The only exception is that it can be a little protective of its family. This is not necessarily a bad trait, though, if you’re looking for a good guard dog. Newfoundlands are popular search and rescue dogs for the coast guards of England, France, and Italy.

Common Health Issues

The Newfoundland is unfortunately wracked with several health issues. Some of the more serious issues include: eye diseases like cherry eye and cataracts; subvalvular aortic stenosis, which narrows the blood flow out of the left ventricle of the heart; hypothyroidism, or low production of the thyroid hormone, resulting in lethargy and obesity; and hip and elbow dysplasia, which is a misalignment of the joints. Other issues include bloating, kidney or bladder stones, epilepsy, and tears or ruptures of the anterior cruciate ligament in the knee. Cancer is also one of the leading causes of death. The chance of any single condition arising is unlikely on its own, but you should look out for the signs so you can catch them early.

Care

Biggest Dog Breeds: Newfoundland

The Newfoundland dog, one of the biggest dog breeds, requires quite a lot of maintenance and care.

The Newfoundland’s big body requires quite a lot of maintenance and care, and it is expensive to own. For best results, you should obtain a Newfie as a puppy to socialize and train it as soon as possible. You should also take it in for annual health checkups to catch problems early.

Best Dog Food

The Newfoundland requires some 4 to 5 cups of high-quality dry food divided into two meals every day. The exact amount will depend on the dog’s age, size, and activity level. Obviously, younger and active dogs will require more food. If the dog begins to put on a lot of pounds, then you should carefully manage its calorie intake. For an ideal member of this breed, you should be able to feel but not see the ribs through the skin. If you need some advice about your dog’s diet, then you should consult your vet. The Newfie’s weekly food cost may be higher than most other breeds.

Maintenance and Grooming

Newfoundland dog pictured in front of colorful leaves

With a loyal and diligent personality, the Newfoundland is easy to train.

The Newfoundland is content with weekly brushes for most of the year and daily brushes at the height of the shedding season. If the dog has been spayed or neutered, then it may need to be brushed a few times a week all year long. Regular nail trimming and ear cleaning should be given as well. And you may need to clean up the dog’s constant drooling.

Training

The Newfoundland is a breeze to train. With its loyal and diligent personality, it easily follows commands and doesn’t get riled up. You should be aware, however, that it responds best to gentle and positive training methods. Negative training or shouting is counterproductive and might only discourage it from working with you. But if you treat it right, then the Newfie can excel at obedience and agility training. It’s also an excellent work dog that can be trained to pull carts, haul wood, and pull in nets. Also, thanks to the webbed feet, immense lung capacity, and oily double coat, the Newfie can be trained as a rescue dog to save drowning victims and take them to shore.

Exercise

The Newfoundland requires about 30 minutes of moderate exercise every single day. Even though it is mostly an indoor dog (and probably not ideal for people who want a highly athletic breed), the Newfoundland does enjoy swimming, hiking, and long walks. Swimming is probably the ideal exercise for this breed. Not only is the Newfoundland an excellent swimmer, but the exercise is low-impact and won’t strain its body. Because of the long double coat, you will want to make sure your dog is properly cool and hydrated in the warmer months.

Puppies

Black and white Newfoundland (Landseer) puppy

A Newfoundland puppy grows fastest between four and seven months of age.

The Newfoundland grows very quickly between the ages of four and seven months. Because the fast growth places so much strain on its joints and bones, you should let your puppy run and play on soft grass rather than pavement and other hard surfaces. Swimming is also ideal for the reasons stated above. In order to maximize its health, you should feed the puppy with enough protein to support its growing body. It is always a good idea to purchase your puppy from a reputable breeder who screens for possible health issues.

Children

Few other breeds of dog are quite as kind and gentle with children as the Newfie. Although its immense size is somewhat intimidating to smaller children, the Newfoundland’s protective nature has rightly earned it a stellar reputation as a very good nanny dog. This breed is also highly tolerant of rough play. There are a few things you should keep in mind, however. No matter how close they are, you should always supervise every interaction between your children and dog so you can intervene if things go awry. Second, you should teach your children not to disturb a sleeping or eating dog.

Similar Dogs

The Landseer is the closest relative of the Newfoundland. It has almost all of the same traits and physical characteristics. Besides the Landseer, you can also check out the following working dogs:

  • Saint Bernard: Originating from the Swiss Alps, this kind and gentle behemoth was bred for rescue work by the Great St. Bernard Hospice at some point in the 17th century. The coat comes in two varieties, smooth or rough, both with a mixture of white and brown markings. The Saint Bernard differs from the Newfoundland in that it is a larger dog on average.
  • English Mastiff: As another large and powerful breed with a kind and gentle nature, the English Mastiff has often drawn comparisons to the Saint Bernard. The short coat tends to be light brown or tan around the body and black around the muzzle, ears, nose, and eyes.
  • Great Dane: Also known as the German Mastiff, this breed is a friendly dog that thrives on physical affection from its owner. Descended from hunting dogs in the Middle Ages, it tends to have floppy ears, a large snout, and a square body with a short coat of fawn, black, brindle, or harlequin.

Famous

Some Newfoundland dogs have gained fame for saving people from drowning.

History is filled to the brim with examples of famous Newfies. Here is just a small sample of them:

  • A Newfoundland named Seaman was part of the 8,000-mile Lewis and Clark expedition of North America in the early 19th century. One incident in particular stands out. On the night of May 29th, 1805, Meriwether Lewis wrote in his diary that Seaman scared off a large buffalo bull that came close to the tent.
  • Napoleon the Wonder Dog was a star of Van Hare’s Magic Circus starting in 1862. He toured the country and dazzled onlookers with entertaining tricks and routines.
  • Sable Chief served as the mascot of the Royal Newfoundland Regiment in World War I.
  • Nana is the fictionalized Newfie in J.M. Barrie’s Peter Pan, based on his own dog Luath (though the 1953 animated Disney film changed it to a St. Bernard).
  • Presidents Ulysses S. Grant, James Buchanan, and Rutherford Hayes all kept a Newfoundland. So did the poets Emily Dickinson and Lord Byron.
  • Swansea Jack (1930 to 1937) saved between 23 and 27 people from drowning, which earned it the title “Dog of the Century” in its native Wales.
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Sources

  1. American Kennel Club / Accessed September 10, 2018
  2. American Kennel Club / Accessed September 10, 2018
  3. The Paws / Accessed September 10, 2018

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Newfoundland FAQs (Frequently Asked Questions)

If you’re willing to invest the time, budget, and energy into its care, then the Newfoundland is an excellent companion and work dog.