Adopt a puppy? Think twice before deciding on these breeds (2023)


This breed is legendary for being stubborn. Pekingese were bred to be lap dogs by the ancient imperial family of China. Some Pekingese were official royal dogs. These dogs maintain their regal breeding with a haughty demeanor and a strong disposition that inspires respect. It is very difficult to train a Pekingese as they believe they should be in charge and approach this business with a ingrained tenacity. This dog can even bite if disciplined harshly.

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Well-socialized Pekingese are very affectionate with their owner and family, but strangers are treated like intruders. This makes the breed a great guard dog. They are extremely brave considering their size. They will fend off strangers to death if determined to pose a threat.

Afghan Hound

The aristocratic demeanor of this elegant looking creature carries over into his personality. The Afghan Hound attracts attention instead of seeking it. Under the glamorous, long and shiny coat, you might be surprised to find a brave hunter. An ancient breed dating back to the Egyptians, the Afghan Hound was also found in the mountains of the Middle East, where it was trained to pounce after gazelles and smaller prey such as rabbits.

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With a strong instinct and the ability to run nimbly through mountainous terrain, it requires plenty of outdoor exercise. Adopting an Afghan Hound comes with a commitment to daily exercise and grooming. With this level of attention, this dog is a calm and quiet four-legged friend who loves to jump into bed with you. While the Afghan Hound can be trained to be good with children, he is not a playmate. Without attention, this dog will be miserable and left in the backyard.

Siberian husky

The Siberian Husky originated in Siberia, where it was bred by the Chukchi people to pull sleds. This energetic dog does not make a good couch dog, nor does it make a good backyard dog. They are an intelligent breed easily drawn to mischief and are known to be extremely destructive when bored or left alone. These dogs are avid diggers. Escape from custody is another strength.

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PetVet called the Siberian Husky one of the worst breeds for first-time pet owners, saying, "The phrase 'obedient Siberian Husky' is something of an oxymoron." They have strong predatory instincts, so other pets like cats or hamsters can become it Prey. These puppies are prone to howling, reaching loud, siren-like howls. They make great jogging companions as long as it's cool enough. Their thick fur sheds twice a year. Overall, they are happy, playful, independent dogs.

Rhodesian Ridgeback

Sleek and strong, the Rhodesian Ridgeback is distinguished by a stripe of backward-growing hair down the back. It is affectionate, intelligent and child-friendly. However, this dog does not do well with most people. It takes more time and energy than most people have.

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In Rhodesia, this brave dog was known to be a good protector against lions in the 1870s. An intelligent dog, without proper treatment, he will become stubborn and strong-willed. This breed can become very destructive if they don't get enough exercise and don't recognize people as authority figures. It will likely become combative with other dogs as well. With proper upbringing, this dog will be a calm, gentle, and obedient dog.

Brazilian queue

Another Dangerous Dogs Act dog, the Fila Brasileiro is banned in the UK, Australia, New Zealand, Norway and Denmark to name a few. It is not recommended for first-time dog owners. And owning one can eliminate homeowners insurance coverage, while legal liability can be costly. They drool and shed profusely and are naturally teased by guests or strangers. Bred to be hunting dogs, they will fiercely protect your family at all costs.

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If you're still tuned in to this mighty mastiff, he needs an owner who will dominate him as an alpha. You must be firm, confident and consistent. A passive owner will find that the Fila takes the alpha position. According to Dog Breed Info, "A dog of the Fila's tremendous size and strength that thinks he's the alpha to humans is downright dangerous."

Border Collie

As the quintessential German Shepherd, the Border Collie is revered for its herding instincts and skills. Because he's so well suited to the high-energy task of herding, this dog is a ball of energy and excitement. It likes to bark. It is very territorial, another herding instinct. But he is also very playful and affectionate, loves children and needs human contact. And if you need a guard dog, this is the cream of the crop of dogs.

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The Border Collie adores his family and will follow you around the house relentlessly. They develop a very close bond. Due to its herding instinct, it will try to herd your family, the children in the garden and everything it comes across. Chasing children on bikes is included. They develop other obsessive behaviors such as chasing bugs, guarding the dishwasher until it stops, or watchfully waiting for a child to wake up from a nap. Because of this obsessive nature, a Border Collie has a high tendency to become destructive when bored, ten times higher than the average dog.


The Weimaraner was bred in Germany in the early 1800s for their courage, intelligence and excellent sense of smell for hunting big game. They developed a dog with stamina, speed, and versatility in hunting to track down prey of all sizes. This breed hunted deer and bear. The stunning appearance of the distinctive gray breed was captured by photographer William Wegman.

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This breed is so loyal that it will almost suffocate its human. This means that the Weimaraner is very unhappy when alone and will be vocal about it. It is a high energy dog ​​that needs plenty of outdoor air. If you have time for a very active dog that wants to be with you throughout the day, you may have found the perfect pet. This breed is so attached that separation anxiety is a common problem. According to VetStreet, "Some Weimaraners become so desperate when left to their own devices that they will bark, dig, escape, and even injure themselves." In addition, they can be difficult to train, stubborn, and demanding.

bull terrier

Always a popular commercial dog, we recognize the Bull Terrier, with its familiar thick head, as the Bullseye of the Target store mascot. He is remembered by some as Budweiser's feisty Spuds Mac Kenzie. But the revered Bull Terrier is another breed that is not advisable for families new to dogs. Breeding of this dog began in the 1900s, but it wasn't until 1936 that it was accepted as a distinct breed.

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While a Bull Terrier may be fun-loving, fearless, clownesque, active, and obedient, they are not recommended for all households. Left alone without enough exercise and mental stimulation, these dogs become destructive and dangerous to young children. They need supervised entertainment, such as B. Running and playing every day. They are extremely strong dogs with the jaw power of a pit bull. They must be kept away from other pets such as rabbits, guinea pigs and cats.

French bulldog

If you're looking for a dog that doesn't require a lot of exercise, the French Bulldog might be your breed. Frenchies can't keep up with a jog, can't swim, don't tolerate heat, and were bred to be lap dogs. As a brachycephalic, one of the "squashed" breeds, the Frenchie cannot regulate body temperature and needs to be indoors in a climate-controlled area. On the positive side, it sheds very little hair.

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French bulldogs are not recommended for first-time dog owners. Because it is brachycephalic, it is prone to disease and other health problems. More importantly, training this dog can be a real challenge. This dog prefers to be the alpha which makes him aggressive. However, the adorable squished face and perky bat-like ears can be hard to turn away, particularly because it has an enthusiastic personality and is affectionate with people without being too loud and barking. But then again, he can't stand being alone, so most of the time someone has to be in the house with him.

Caucasian Ovtscharka

This breed did its duty well, protecting sheep from wolves and herding flocks in the eastern European Caucasus mountainous region. As a territorial and aggressive dog, he diligently defended himself against wolves. The Caucasian Ovcharka breed emerged in the 1920s. His name means “shepherd dog” in Russian.

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The Ovcharka's thick double coat requires a lot of care and a cool climate. He is a low energy breed but also nervous and strong willed. If not fully socialized, these dogs can become aggressive. VetStreet says, "While its protective nature may be attractive to some people, the Ovcharka does not make an ideal partner for inexperienced dog owners. He is smart but also an independent thinker so he needs someone who can guide him with firm, loving and patient training.”


As if this breed name wasn't long enough, the full name is Louisiana Catahoula Leopard Dog. It was used as a working dog on farms in northern Louisiana and was responsible for herding hogs for slaughter. Native Americans used this dog to hunt game, and the Catahoula got its name from these tribes. The Catahoula Leopard is the official state dog of Louisiana.

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This dog is a loving and loyal companion. He needs lots of exercise and a large, fenced yard. They require firm leadership and lots of walking or jogging. These dogs should always be kept on a leash. Owners who do not take the alpha role seriously are not recommended for this dog. When dogs live with people, we become their pack. You must be the pack leader. Otherwise, the dog will make the decisions and you will not appreciate his leadership qualities.

canary dam

This breed originated in the Canary Islands as a working dog. His job was to herd cattle and pigs and drive away and even kill predatory dogs to protect the herd. It's a powerful animal. VetStreet only recommends this dog to owners who are familiar with dog training. As a warning, VetStreet said two Presas killed a woman in San Francisco in 2006 because the owner couldn't control his dogs.

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Early education and socialization courses are compulsory. Training must continue, and the dog must "work" for whatever it is given, such as treats and toys, by following a command. Vocational training is strongly recommended. If left unchecked, the Presa will also hunt and kill neighborhood cats and small dogs. Instinctively, it has a very strong territorial and prey drive.


This dog is a barker. Skye Terriers are also enthusiastic diggers. It's tough, stubborn and needs a lot of attention. The Skye is also a relentless cat hunter. These dogs are difficult to train, stubborn, and don't get along with other dogs. It has long flowing hair that needs grooming or matted into tangles. On the other hand, the Skye Terrier can be extremely loyal. One Skye slept on his dead owner's grave for the rest of his life, fourteen years in all.

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The Skye Terrier is a moderately intelligent breed from the Isle of Skye in Scotland. Bred as a working terrier, it was used to hunt foxes, badgers and otters. The breed enjoyed a highly regarded status as fashionable pets for noble ladies during the aristocratic Victorian period after Queen Victoria acquired one. A Skye named Rona II even posed in a portrait with the Queen. Since then, the breed has become one of the least known of all terriers.


Dachshund is German for "dachshund". The short-legged, long-legged dog was bred for badger hunting. Chasing them through burrows, the dachshund was somehow able to surpass his enemy's tenacity. Dachshunds are wild and brave. A 2008 study in an academic animal science journal found that the dachshund is the most aggressive of all dog breeds. It's good that it's only a few centimeters off the ground! It comes in three varieties.

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The dachshund is also a diehard digger thanks to its badger hunting breed. Known as the Wiener dog, the small dog that is adored by all children for its funny build does not make a good pet for children, especially young children. One of the more aggressive breeds, this little fellow can be hostile towards strangers and children.

Australian Shepherd

Despite its name, the Australian Shepherd originated in North America and was bred as a herding dog in the western states during the Gold Rush era. This is a very active dog that needs a few hours of exercise each day. It has a very high stamina that allows it to work as a shepherd all day long.

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Also as a herding breed, it is brave, confident, alert, smart, and responsive. However, if these traits are not released through daily exercise, these dogs can make life miserable for their humans. Another trait unfavorable for a family environment is their propensity to herding children and pets. It will stifle and employ other herding tactics.

Dobermann pinscher

Large and strong, these high-energy dogs make excellent guard dogs. But a Doberman Pinscher is not for everyone. It requires extensive training by a handler who is more dominant than the dog. Without proper attention, a Doberman pinscher will become bored, destructive, and vocal.

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The breed was developed by a German tax collector who needed a strong and reliable custodian for the collected tax dollars. He was first recognized at a dog show in Erfurt in 1897. Dobermans are tall, short-haired, and full of strength and endurance. They are loyal, tolerant and committed to family. Although the breed is easy to train, few can provide the consistent, confident, and rule-making guidance it demands. A Doberman Pinscher can become headstrong and stubborn if left to his own devices.


A defining feature of a Shar-Pei is its wrinkled skin, a trait that is particularly pronounced in puppies until they gradually grow into their wrinkled flesh. The folds are cute but prone to infection. The folds must be wiped out with a damp cloth. Like the Chow Chow, Shar Peis have a dark tongue and were likely interbred at some point, as both breeds date back to ancient China.

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The Shar-Pei is territorial and aggressive. Like all breeds, it can be trained for proper socialization, but with the Shar-Pei you need a professional trainer to start with it as a puppy. However, the dog's aloof attitude can make them a disappointing pet for children. Shar Peis aren't interested in hugs or snuggles, but do need to live indoors. It is an intelligent but stubborn breed. This is not the dog for a new owner.

Belgian Malinois

The Belgian Malinois is not a good breed for children. This dog was bred to be a shepherd, and as a shepherd he has a tendency to bite or bite children as if to keep them at bay. The Belgian Malinois became a popular breed in the late 1800s while working in Belgium as either a shepherd or guard dog. To this day, the Belgian Malinois remains one of the nation's most popular dogs.

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This breed is intelligent and obedient, with strong territorial instincts. The master of a Malinois is strict and even-tempered. A tough owner will find a very uncooperative dog. These dogs need vigorous exercise every day. They are high energy dogs that can become destructive and uncontrollable if not properly socialized and trained.

Dogo Argentino

The Dogo Argentino is another breed banned in the UK under the Dangerous Dogs Act 1991. It was bred in Argentina as a big game hunting dog for large prey such as cougars. It was also bred to be a protectorate for humans. But because of its predominant characteristics - stubborn, intelligent and domineering - the dogo has been banned in several countries.

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This dog is not recommended for first-time dog owners. In addition to being intelligent and stubborn, a Dogo is tall, powerful, and energetic. Without a leader who is just as strong, yet calm, steadfast, and consistent, a Dogo will be destructive and assertive. Even a trained Dogo will prey on your neighbors' pets, killing cats and small dogs. A high fence is a necessity with a Dogo. This dog is a natural worker and without doing anything he will likely chew up your personal belongings.

Stock Course

This dog is intelligent, territorial, and a good watchdog. A Mastiff breed from Italy, the Cane Corso is a massive breed bred to hunt big game. These dogs weigh 120 pounds. Overall, they are not well suited to novice dogs. Even people who got along well with cooperative breeds like retrievers and spaniels are no match for this strong, intelligent, active, and headstrong dog.

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The Cane Corso doesn't take on strangers, even after consistent socialization—he's a guard dog through and through by nature. If you have a cane, you should walk or run it at least a mile every day. Adding another 20 minutes of training exercises will allow this highly active dog to relax a bit. It is not advisable to take this strong and aggressive dog to dog parks. Left alone at home, a cane will be very destructive and aggressive. To his credit, the Cane Corso is devoted to his family and due to his protective, guardian canine nature, he is very loyal.


The Boerboel, or "farm dog," came from South Africa in the 19th century as a guard dog. Until 1938 they were used to guard industrial diamond mines. They are very powerful and large, weighing up to 180 pounds. It is an intelligent and stubborn dog and should not be adopted by an inexperienced dog owner.

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Experienced handlers can produce a well-socialized pet through continued training and socialization from an early age. This helps to avoid behavior problems and dominant behavior. These dogs have thick coats and enjoy being outdoors in cool weather. However, dog parks are not recommended for a dog that is very protective of their family and may attack without warning. Boerboels should always be leashed.


The Rottweiler was a successful police dog, herding dog, military dog, and therapy dog. This breed is highly trainable and very loyal. Rottweilers thrive as working dogs and get bored when they have nothing to do but chew up your sofa. The Rottweiler's work ethic dates back to Roman times when they were likely used as cattle dogs. They are named after the place where tiles for the roofs of Roman thermal baths were obtained, called Rottweil. The dogs could come from this German city.

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Rottweilers rank second only to pit bulls for bite fatalities. Some home insurance policies won't cover your home if you have a Rottweiler, and owners will be liable for the damage the dog causes. Rottweilers are powerful, tall, and extremely protective. At 135lbs most of it is muscle, his instinct is to attack a threat. So maybe you want to hope that it isn't your friend who is perceived as a threat by dropping by. Because of this, it is a formidable police dog.


Descended from Bulldogs, Great Danes, and Mastiffs, the Tosa is a very large breed, weighing up to 200 pounds. Tosas are not ideal for novice dogs. Bred for bloodsports, you might not want this creature anywhere near your young. In fact, the Tosa is a banned breed in four European countries, including the UK.

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To board this type of dog you will need a yard with a fence that is at least 6 feet high. Electric fences are not for a Tosa, the shock will not deter this dog. This race is large and has the athletic build of a warrior. The history of the Tosa goes back to Japanese dog fighting in the 14th century. Named for the province of Tosa on the island of Shikoku, the Tosa is alert, dignified, calm, and courageous. These dogs make excellent watchdogs and caring companions. For training, this eager breed seeks an ample supply of positive reinforcement.

Jack Russell Terrier

Jack Russel is a stubborn terrier. It digs, barks, jumps, and hunts with relentless abandon. The Jack Russell Terrier (JRT) was bred as a hunting dog. Your garden or living room is fair when your JRT is after prey. Spiders, mice, and other insects will be hunted to extinction, and your home will be scratched and dug up.

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JRTs tend to get into behavior problems like "small dog syndrome" fairly easily. Problems such as snapping, separation anxiety, obsessive barking, and guarding can surface. They are difficult to socialize and need consistent and firm training from an experienced trainer. These dogs need lots of exercise and a high fence. Climbing and jumping over fences is one of his strengths.

Bernese Mountain Dog

The Bernese Mountain Dog is a happy, intelligent breed that loves children. He is one of the widely recognized Swiss Mountain Dogs. Its thick, long, and silky coat keeps it warm in chilly weather. Able to withstand an alpine climate, this mountain dog worked as a shepherd or flock guardian.

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The Bernese Mountain Dog is a very large and strong breed. That's not too much of a problem since he's such a gentle giant. But one thing you might want to consider before introducing one of these lovers into your home is its lifespan. On average, a Bernese Mountain Dog only lives six to eight years. These dogs are prone to cancer. A Dog Breed Info source said several of these breeds died of cancer between the ages of three and four. A dog aged two also died of cancer.


The pit bull is not a breed meant for everyone. They are strong dogs with extremely powerful jaws. When properly socialized and trained, these dogs make ideal watchdogs and exceptional family pets. You can be very loving and gentle. Nonetheless, pit bulls were bred in 18th-century England for spectator sport, where bulls and bears were baited. The blood sport was made illegal in 1935, but the equally aggressive blood sport of dogfighting took its place.

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Due to breeding, pit bulls are aggressive. As one of the most aggressive dog breeds, he will never shy away from a fight with another dog. It's a life-and-death struggle that pit bulls rarely lose. A leash is essential for pit bulls; This strong dog should always be on a leash. When it comes to dog attacks on people causing serious injury or death, pit bulls are the most commonly cited breed. Another thing to note is that dog owners are legally liable for injuries caused by their pets.


Wolfhounds are less well known than older, more traditional breeds. A wolfhound is a cross between a domestic dog and a wild wolf, but the mix content is uncertain. There is still no behavioral consistency in dogs of this name. In fact, there is more variation in wolfdogs than any other dog. What is certain is that this type of dog is legal in fewer than 10 states. In New York, you need a “dangerous animal permit,” the same permit required to keep a lion. Even so, wolfhounds are being sold by breeders for $2,500, even though most puppies do not have wolf content.

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If you give birth to a puppy that's clawed an escape route through the drywall in your home by the age of six months, chances are you have an actual wolfhound on your hands. A content wolfhound is not a good watchdog, preferring to hide from strangers. They do not like being kept indoors, they are not interested in pleasing you and should never be left alone with small pets and children due to an innate prey instinct. All happy wolfhounds will need treatment as early as 10 days of age, as well as consistent socialization.

German shepherd dog

As a representative breed of the K-9 police patrol, German Shepherds are known to be smart and dutiful dogs. However, over at VetStreet they have some advice. "There's little he can't do with the right training, but that's precisely why he's not ideal for newbies - it takes quite a bit of training, practice and dedication to stay 'smarter' than he is." This dog will not recommended for first-time owners, and obedience training should begin at an early age.

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The breed was developed in Germany in 1899 for raising livestock - mainly sheep. Soldiers returning from World War II brought German Shepherds home, while the beloved Rin Tin Tin became the first movie star dog. Although trained as a herding dog, he has also been trained for his versatility. It is a working dog that likes to have a job to do. He is excellent as a rescue dog, guide dog and police dog and has excelled in dog sports. And don't forget, German Shepherds need lots of exercise!


The Noble Greyhound is an ancient breed from Egypt or Greece. With long legs, an arched back, and a lean, aerodynamic build, this dog was built for speed. Greyhounds are racing dogs, but they were originally bred by British nobility to hunt foxes, deer and rabbits. It has a strong prey instinct and is often muzzled – for good reason. Children and small animals can appear like prey to a greyhound. If you go for a walk, keep yourself on a leash! They are extremely fast, the fastest of any dog ​​breed, and will pounce on anything that might be prey.

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On the other hand, Greyhounds have a sweet and mild temperament and don't need a lot of exercise. A short walk each day is enough, which makes apartment living surprisingly suitable for this lanky dog. It's a low-energy breed, a sprinter, not a long-distance runner, nicknamed the "40-mph couch potato." Cold weather is not the best fit. As a short-haired breed, he is easy to groom, but a dog sweater is required on cold days. Also, a high back fence is a must. A height of six feet is recommended.


The Bullmastiff is a breed from 1860s England that was used to protect livestock on large estates from murderous poachers. It is a brave and strong dog that weighs up to 130 pounds. This breed is good with children but terrible with other dogs. These dogs will drool, drool, and snore.

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Bullmastiffs are stubborn and require consistent training. On the other hand, the Bullmastiff is a dedicated guard dog with a mild temperament. They are calm and loving. When provoked, this dog is wild, loyal to its breed. They require full obedience training and must be kept on a leash at all times. While the Mastiff is a dominant breed, a Bullmastiff is even more so.


A basenji is a poor choice for a family pet. Owners of the nervous breed have been known to tell tales of their mischievous acts of destruction. As an intelligent dog, he knows which of your possessions are your favorite. This breed is intelligent and independent, with the characteristics of a cat. It is inquisitive and reserved, inquisitive and smart.

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With its pointed ears and tightly curled tail, it looks as energetic as it is. A basenji cannot bark, but they make many original noises that you have to hear to believe. They howl, scream and yodel. The Basenji is a primitive breed discovered by pygmy hunters in the African Congo. Always on the alert, these dogs make excellent guard dogs, but they need training from an early age.

Sankt Bernhard

The Saint Bernard got its name from the patronage of monks high in the Swiss Alps at the Saint Bernard Hospice. The monks used the dogs on search and rescue missions to track down lost travelers. These dogs have saved thousands of lives. With a reputation as a gentle giant, St. Bernard doesn't fall far from the label. They are gentle, friendly and patient with children.

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Dog Breed Info calls them patient, obedient, extremely loyal, eager and ready to please. However, the rating comes with a warning. "Teach this dog from a puppy not to jump on people. Keep in mind that a stubborn dog of this size poses a problem, even for a strong adult, when it is about to be walked in public places on a leash.” A dog of this size can create a very dangerous situation. It is also prone to heat exhaustion and prefers to stay indoors. But pay attention! This dog drools profusely and likes to chew up your personal belongings.

The Great Pyrenees

This breed has the potential to be a devoted pet, loyal to your family, as well as a competent watchdog. However, Great Pyrenees tend to be strong willed and stubborn so a determined training schedule must be in place. He doesn't have a reputation for being an easy dog, but with a heavy amount of socialization and training at home, he can make a good family companion.

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These dogs are gentle with children and quiet around the house. Outdoors, this dog requires a secure fence and is not recommended for off-leash walks. Drooling is common. The Great Pyrenees was bred as a livestock guardian dog in the Pyrenees of France and Spain. This background makes the Great Pyrenees a brave and effective watchdog. His nature is alert, protective and attentive to his family.


Dalmatians were bred to run. Originally they drove alongside horse-drawn carriages and eventually became known for running with the fire brigade. So jogging 10 miles every morning will help. However, it will not cure his high-tension tendencies. It is one of the most exciting breeds.

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This striking white and black spotted dog with a tall build, long tail and floppy ears can be trained to be a good watchdog, but it's not easy. Without training, Dalmatians become aggressive and destructive. They are low-maintenance pets, capable of digging a crater-sized hole in your yard, and are too excited to be around young children.


The Chow Chow has the personality of a cat - aloof, independent, dignified and cat-like too. Its arctic coat makes the chow chow a poor choice for mild climates, and its dominant breed type makes it a poor choice for people who want to be in charge of this adorable part teddy bear, part lion, part blacktongue chimera . The unique but vocal dog is one of the oldest breeds in the world. The ancient breed is believed to have originated in China.

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But he will not make many neighbors happy with a strong tendency to bark. And it will work tirelessly to keep your human household in the alpha position until every human caves in. They do not get along well with children or strangers and can become aggressive. If there is an experienced handler in the home, the dog can be raised to be a well-socialized Chow, but the breed is not recommended for families without a strong, disciplined handler who is familiar with dogs.

Shih Tzu

The Shih Tzu is not an outdoor dog, but they make the perfect companion that will share lots of love with you around the home. They were bred in China for loyalty and as lap dogs. They are playful and fun-loving and mischievous too. On the other hand, Shih Tzus tend to bark incessantly. It's that familiar high percussion: Yap! bark! bark! House training can be a nightmare unless you plan on replacing your floors anyway.

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As a brachycephalic, the Shih Tzu is notoriously prone to illness and dental problems. They often have breathing problems that may require surgical treatment. Their round dark eyes are adorable, but bulging eyeballs are at risk for eyeball injuries called proptosis and other eye conditions. There is also a risk of an inherited condition called renal dysplasia.


The Affenpinscher is German for "ape-like terrier" and lives up to its name. The inquisitive and hardworking little fellow is also known in France as the "devil with a mustache". The toy-sized dog is distinguished not only by a mustache, but also by a full beard and bushy eyebrows. On his shoulders is a coarse cloak. It loves to fool around and is as playful and mischievous as its looks would suggest.

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The Affenpinscher is a barker and a climber. He is not afraid of anything and is an insatiable rodent hunter. It will go after big dogs without hesitation. This dog is a staunch guard dog, but its size precludes any protective duty. The Affenpinscher is a loyal family dog, but also cheeky and stubborn. This dog takes a vigilant training. Despite its small size, weighing just under 8 pounds, it will fight for the position of pack leader in your home. Growls, snaps, and bites are your first clues that it has taken the lead. Affenpinschers are not good with children and will become aggressive towards toys and territory.


The Chihuahua was first discovered in 1850 and named for the Mexican state where it was found. The small breed is the smallest of all dog breeds, weighing between two and six pounds and standing just a few inches off the ground. Her big eyes and pointy ears define her. But just because it's small doesn't mean the Chihuahua is harmless. If it were a larger breed, it would pose greater problems.

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Chihuahuas are barkers, pincers and aggressive. They will boldly chase after large dogs, unaware of their smaller size. They are strong-willed, proud and lively. But they are also devoted, loving and loyal companions. Small Dog Syndrome plagues this breed. And since they are absolutely loyal and committed to their human, they investigate threats to them, whether real or perceived. Chihuahuas are not good with children. They don't like or trust children and can become snappy.

German Mastiff

The Great Dane is an extremely large dog. He holds world records as the tallest dog. Like the St. Bernard, he is known to be a gentle giant who drools a lot. It is playful and attentive to children, loves people and is not overly aggressive. They are considered reliable and loyal. Great Danes are experienced guard dogs.

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However, this very large dog requires consistent training, which should start early. Even as a puppy, a Dane can knock over children and small tables. As an adult, its tail can clear a coffee table with a single swipe. These dogs grow to 175 pounds. They cannot be carried around the house or moved easily. Contrary to the name, Great Danes were bred in Germany in the 1300s to be proficient hunters capable of taking down wild boar.


Basset Hounds may be incredibly adorable, but they're also known to be notoriously stubborn, which makes training them quite a challenge. They may be very lovable, but their headstrong nature requires a lot of patience.

(Video) 11 Dog Breeds You Should Think Twice About When Adopting!

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We have no doubt that adopting a Basset Hound will make a great addition to your home, but just be prepared for their demanding nature.


Beagles are very stubborn and easily distracted. Most people automatically take a liking to beagles, but only after they've been trained. Beagles are smart and require a lot more stimulation than most breeds.

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Their independent nature also means they don't come easily to obedience, but once trained they make a loving family member.


Bloodhounds are known for their large lop ears and long, wrinkled faces, but they are also known to be headstrong, curious, and affectionate. You can train a bloodhound, but as a breed, they're not exactly a star in the obedience ring.

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They are wonderfully independent but just aren't very motivated to perform tricks and maneuvers for their own sake, but could be more obedient when it comes to a treat.


Fox Terriers are fearless and have a fair amount of energy. Essentially they have two moods, either they can be very lazy and want to sleep or they are energetic and have lots of energy to exert themselves.

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Training a Fox Terrier puppy can be challenging as they are known to have a peppery personality.

Irish Setter

Irish Setters have very high energy levels. With their good humor, it can be difficult to train them for long periods of time. Shorter training sessions work best for these happy but gentle dogs.

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The Irish Setter stays a puppy for a long time, which means an Irish Setter will retain their adorable puppy personality longer than other breeds, which also means more work to train them.


Their charming personalities can often lead them to be a little mischievous, but pugs also want to please their human family, although they take much longer to be housebroken.

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They also loathe being outside, so many try to avoid going outside when it's cold or rainy. Also, these little critters rarely show remorse when they have an "accident" on your floor.


These fascinating dogs have a strong prey drive, Akitas were originally bred to hunt wild animals and if not properly trained they can become aggressive. Akitas can also be very protective of their owner, making them a potential threat to others if not properly trained.

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Akitas also have a reputation for being challenging when it comes to raising them.


Labradors may be the most popular breed in America, but training them properly can be difficult for an inexperienced dog owner. Until they reach full maturity, they have a strong urge to chew and can be destructive if left to their own devices.

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And if Labs aren't properly exercised, they tend to pull their owners' leashes when they walk. Labradors also shed a lot, so expect them to find their hair all over your home.


Newfoundlands are gentle giants, but they can also be the toughest of dogs if not trained well early on, as they can easily outperform most owners. Additionally, Newfoundlands are definitely not a good match for those who want a tidy home as they tend to drool and also shed heavily twice a year.

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Because of their size, they can be destructive without even meaning to - knocking over everything that gets in their way while just being playful.

Irish wolfhound

With hearts as big as the rest of them, these large doggos were originally bred to hunt wolves and they can have a slight tendency to be aggressive towards other animals. Because of his size, it's important to teach him good leash manners before he gets too big to handle it.

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Unfortunately, Irish Wolfhounds suffer from a number of health issues and have a very short lifespan of only five to seven years.

Spanish water dog

Spanish Water Dogs are a very athletic and low maintenance breed, they need plenty of exercise throughout the day. Originally from Turkey, this breed was imported to Spain to serve as a guard and shepherd dog and as such they are fiercely loyal.

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Without proper exercise and a specific task, the Spanish Water Dog becomes a very sad pooch and can become destructive as a result.

English Foxhound

English foxhounds have been the preferred choice of English fox hunters for hundreds of years and this is why they are known as one of the most difficult dog breeds to train.

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English Foxhounds often get along well with horses and people, however, due to their hunting background, they require a lot of exercise as they have a very active demeanor.


Harriers have been humorously referred to as "beagles on steroids". They are very athletic hunting dogs and as such prefer to be active with a particular affinity for exploring the great outdoors.

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Unless raised around other animals from a young age, Harriers tend to be aggressive toward any other small pet they encounter.

Czech Terrier

Cesky Terriers were created by crossing a Scottish Terrier with a Sealyham Terrier. The goal was to have a terrier suitable for hunting in the Bohemian Forests of the Czech Republic. They are a very excited and energetic breed that requires a lot of activity.

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Cesky Terriers are also very "needy", requiring a constant stream of attention, and can become completely dependent on their human family for any happiness.

Finnish Spitz

This small fox-like dog is quite ferocious for its size, its sharp ears making this dog very alert. Finkies, or fins as they are also known, can be an excellent combination of an affectionate companion and a watchful guardian. They are often suspiciously shy around strangers, which can make it difficult to invite newcomers to dinner.

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Finkies are prone to "separation anxiety," which can lead to destructive behavior and barking if left alone. The Finnish Spitz is also very stubborn and headstrong, which can make training this breed a pain in the butt.


The Pharaoh Hound is an athletic breed whose name derives from its appearance, which resembles that of ancient Egyptian sculptures. As a breed that is exceptionally good at jumping, you should have a high fence to prevent them from jumping out of the yard and running away.

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They have a very strong instinct to hunt other living creatures and must have a large yard to provide plenty of space to romp around.


The Komondor is deceptively small, cute and cuddly like a puppy. Many have adopted one of these, only to find that raising them requires very careful planning and thought. They grow to gigantic proportions and can easily overwhelm the owner if he decides to disobey.

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Their long strands of hair that add to their unique looks can also prove challenging if not groomed very regularly, this breed becomes an uncomfortable mess of matted hair and even runs the risk of being infested with insects.

American English Coonhound

This breed requires some of the toughest training demands of all. They tend to jump and fight and become very destructive when bored. Leave this dog alone for a while and you might come home with chewed up furniture and shoes.

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They can be easily distracted, which can make training and checking in public or even just around family members a chore.


It's almost impossible to resist their cute, charming nature or even their soft fur. However, Pomeranians will also find their owners utterly irresistible, and unless you're prepared for them to fit into your lifestyle, things could become problematic. These dogs can be difficult to train and they need to learn socialization or they can become shy or aggressive.

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They are also a barking breed and can become a nuisance. Training to be quiet on command is important, and Pomeranians will do well with firm and consistent training.

The boxer

The Boxer comes from Germany and is a very strong breed. They can weigh anywhere from 50 to 70 pounds. They are known for being energetic and playful which makes them difficult to train. By nature, this breed is not usually violent or aggressive.

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When you see them walking down the street, they come across as unfriendly, although this is most likely not the case. However, don't confuse this typically friendly dog ​​with never being aggressive as they can attack at any time under certain circumstances. If you don't anticipate your dog's next move, it can be difficult when small children are around.


This breed looks very similar to the Siberian Husky. However, they are larger and usually more dangerous in nature. They weigh between 75 and 100 pounds and stand 23 to 25 inches tall. They were originally bred for sledding. These dogs need lots of exercise and plenty of space to roam freely. If not, they have been known to destroy their owner's property.

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They do not get along well with other dogs, even if they are of the same breed. Fights often break out with these dogs. These dogs can also become very possessive of their food and become extremely aggressive if you try to approach their meal.

(Video) 10 Dog Breeds You Should Consider Twice Before Adopting

Alaskan Malamute

Although the Alaskan Malamute and the Malamute are different breeds together, there are many similarities between the two. They are both very active and strong dogs.

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If you don't exercise your Alaskan Malamute properly or don't get enough exercise, he can become bored and aggressive.

Akita Inu

Bred in the mountains of Japan, the Akita Inu is a very independent and stubborn breed. They are meant to be hunting dogs, so their hunting instincts will likely kick in around smaller animals. They are not known to attack their owners, but due to their size and power, they are likely to do serious damage if they did attack.

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It is important that these dogs are properly trained and socialized; otherwise they pose a risk to the safety of other people and animals. It is well known that an improperly trained dog can become aggressive and injure people if they get out of control. It is not recommended to let these dogs roam freely outdoors where they have access to strangers and other animals.

American bulldog

The American Bulldog is a breed known for being brave and fearless. They can sometimes be aggressive if they feel threatened.

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Surprisingly, this breed is very friendly and sociable, despite originally being intended for hunting large animals like bears. Because of their muscular build and confident, headstrong nature, the American Bulldog can be difficult to train and often cause harm if not careful.

american bandog

The American Bandogge is a mix of a Neapolitan Mastiff and a Pit Bull Terrier. They have what is called a British canine temperament, meaning they have a high threshold and pack mentality.

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When properly raised and trained, these dogs are more than trustworthy with children, somewhat of a babysitter. On the other hand, this dog is often bred for fighting purposes, which makes it very aggressive.

Wolf hybrids

A wolf hybrid is a dog that was bred with a wolf. Research has been conducted and nothing has proven that more socialization and proper training would make them better pets.

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However, there are some wolf hybrids that can be docile and have a good temper. But there is a higher percentage of these dogs that tend to attack people and other animals. In most cases, people must obtain certain certifications to own this type of breed.

Tibetan Mastiff

If you are looking for a reliable guard dog, this breed is for you. In Tibet, these dogs were chained to a pole for just two months to make them aggressive. They would then be used to guard an entire village.

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These dogs are very attached to their owners and those who love them. They protect her with their lives. This breed is only recommended for experienced dog owners who can take the time to give them the right training.

Staffordshire bull terrier

This dog can easily be confused with a pit bull as they share some of the same physical characteristics. Unfortunately, like the pit bull and many others, these dogs are bred for fighting purposes.

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If you are in the market to adopt one of these terriers, it is not recommended to place him in a home with young children or other pets as his temperament is very unpredictable. This breed is also known for being very energetic, so they need to get plenty of exercise.

The Moscow watchdog

This particular dog breed is a cross between another well-known and aggressive dog breed. The Moscow Watchdog is a cross between a Saint Bernard, a Caucasian Ovcharka, and a Caucasian Shepherd Dog. They are really massive and beautiful to look at.

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These dogs were first bred in the Soviet Union and developed specifically as protection-worthy military dogs. These dogs were bred to serve and protect their owners, and as a result they have a particularly high rate of aggression, which can be dangerous for inexperienced dog owners.


Also known as the French Mastiff, the Dogue de Bordeaux is a working dog originally bred in the Bordeaux region of France. These dogs were primarily used as working dogs as their size, strength and intelligence made them easily trained to work on the farm.

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You need to stay physically fit, so daily walks and plenty of exercise are a must. This breed is generally friendly with adequate socialization skills from an early age. However, they are banned in certain areas and are not covered by home insurance.

Bully Kutta

Most popular in Pakistan, the Bully Kutta is also known as the Indian Mastiff. Like many Mastiffs, Bully Kutta is used as a guard dog. They are certainly an intimidating breed. Their size, strength and trained aggression have made the Bully Kutta one of the most popular guard dog breeds in all of Pakistan.

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This dog is often cautioned against being left alone with small animals and children. Their protective instincts may work well to protect territory and adults, but there is always room for error.

Russian black terrier

The Russian Black Terrier has a particularly cruel past. This is a fairly new breed of dog that was bred in the 1920's. In addition, they hardly shed hair, which is good for allergy sufferers. As far as research shows, the Russian Black Terrier appears to be the only dog ​​ever bred specifically to hunt humans.

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It was bred in the former Soviet Union as a dog specifically to keep inmates in prison camps at bay. Well, the Russian Black Terrier makes a particularly stunning guard dog, although its dangerous past should always be kept in mind.

Korean Jindo Dog

Bred on Jindo Island in Korea, the Jindo is a hunting dog known for its courage and loyalty. Of course, hound instincts mixed with bravery make a particularly mean dog, especially if not properly trained.

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Like most primitive dog breeds, the Jindo is quite stubborn, which means they can be difficult to train. Inexperienced trainers may find that the Jindo is more than they can handle. Because of this, most of these dogs remain untrained, unpredictable, and aggressive.

Belgisches Lakenois

This strong and hardy dog ​​comes from the Belgian Shepherd family and this one is the rarest. One of the most distinctive features of this dog is the blackening around the nose, indicating a keen and keen sense of observation. These dogs are quite fierce guard dogs with their protective nature.

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The Laekenois take a while to warm up to strangers, but eventually become friendly. If you adopt a Laekonis, be sure to keep him active; Otherwise it can get grumpy.

Thai Ridgeback

With a lean and athletic build, the Thai Ridgeback can make a formidable hunter and watchdog. Without an experienced dog owner, these dogs can get out of control pretty quickly. They require a lot of assertiveness and patience. Consistency is key.

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The Ridgeback thrives on independence and self-sufficiency. They naturally tend to hunt for their own food and are highly intelligent. It's safe to say that this breed is not a lap dog. So if you're looking for a pet pooch, look elsewhere.

Romanian Mioritic Shepherd Dog

Belonging to the LGD group - Livestock Guarding Dog, these dogs are incredibly reliable and loyal to their owners. While these are great traits, they are accompanied by more aggressive traits. These dogs are extremely protective and can easily distrust strangers.

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Because of their temperament, these dogs receive basic training and a strong sense of discipline that is instilled in them. Their high energy requires them to take daily walks. These dogs need lots of space to roam freely and lots of exercise.


This is not an easy breed and not exactly ideal for new dog owners! These dogs tend to be stubborn and need quite a bit of attention. For owners who put their efforts into teaching this type of dog the appropriate behavior, the reward is an incredibly loyal pet.

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It's important to remember that these dogs love a job. Without them, they can become aggressive. They are amazingly creative working dogs with high levels of energy. Excellent for search and rescue organizations, therapeutic activities, obedience testing, agility testing, and flyball, Hovawarts also make great service dogs.


This dog is not for the faint of heart. Beaucerons are sturdy and muscular dogs with a strong presence. Standing up to 27 inches tall at the shoulder, these dogs can do quite a bit of damage. The American Kennel Club has described these dogs as "well chiseled," with dark brown eyes that project "an expression that breed breeders describe as outspoken and confident."

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It is important to remain dominant with these dogs as they can very easily dominate a weaker owner. However, it's good to note that once disciplined, these dogs are excellent at dealing with the smaller and defenseless.


This Japanese hound has been described as extremely brave. They have strong predatory instincts and can often be spotted hunting smaller animals. They were originally bred to hunt wild boar and deer.

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If these dogs are not well socialized they can easily become combative but with the necessary training they are affectionate and protective dogs. If you adopt one, be careful when meeting strangers.

Shiba Inu

Essentially a popular companion dog, the Shiba still has a predatory instinct, having been bred to be a hunting dog. The dogs do not like provocations and can show aggression, but especially when expressing feelings, these dogs emit the so-called "Shiba cry". This shrill cry can ward off unwanted guests and can also serve as a strong warning sign of mishandling.

Adopt a puppy? Think twice before deciding on these breeds (79)

The Shiba is Japanese (it's a Japanese breed!) for bushwood, a type of shrub or bush that turns red in the fall. Many people believe that this was taken into account when naming the dog. On the other hand, in Nagano, an ancient Japanese dialect, Shiba also means small. Either way, this "Little Brushwood Dog" has it all.

(Video) 5 Popular Dog Breeds to Think Twice About According to a Vet

Lhasa Apsos

It may be hard to believe, but these dogs were originally bred by Tibetan Buddhist monks as indoor monastery guard dogs. Yes, these little dogs are not easily scared away. If left untrained, these dogs can turn into aggressive little monsters.

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They are extremely suspicious of strangers and eager to express their dissatisfaction with their owners. They can also be very stubborn and have been observed lying flat on the ground without moving when they don't feel like running.

Australian Cattle Dog

The Australian Cattle Dog is also called "Blue Heeler" or "Australian Heeler". But whatever the breeder or shelter calls him, he's not an ideal match for a brand new dog owner.

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They have a reputation for being stubborn and energetic - not to mention a truly adventurous spirit and a belief in their own invincibility that will leave you wondering how they will injure themselves next. Additionally, Australian Cattle Dog owners must establish themselves as pack leaders to encourage a harmonious household.


Notoriously smart and stubborn, Airedales are tricky simply because they have a typical terrier temperament in a large dog body. Terriers are known for being independent thinkers and voracious predators.

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While this can be cute in a Jack Russell, it can be difficult to deal with in a larger breed like an Airedale. They're also quite alert and can be rude to newcomers, which can be an added challenge for owners who enjoy entertaining.


The Borzoi or Russian Hound is a breed of Russian sighthound-type hunting dog. These beautiful dogs were once used for wolf hunting and were known as the Russian Wolfhound until 1936.

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Borzoi dogs are intelligent and very affectionate with their owners, but are also independent and sometimes stubborn, so training them can prove a challenge. Patience and consistency are the key. Overall, they are usually gentle, well-behaved companions.

Caucasian Shepherd

They may look like a cuddle mate, but they are formidable guardians and were bred to guard anything or anyone they take for their family.

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Because of their strong will, fearlessness, and independence, they make excellent guardians. By nature, these German Shepherds can be very aggressive if not very well trained. Also only truly happy when they have work to do, these dominant dogs can be a challenge for even the most experienced dog owner.

Anatolian Shepherd Dog

Protective and territorial, but also intelligent, patient and fiercely loyal, these muscular Avengers are prized as worker guard dogs without equal. Anatolian owners need to be strong leaders, willing and able to handle a dog that is as dominant and demanding as they are calm and loving.

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The Anatolian Shepherd Dog was first bred to work independently, make their own decisions and protect their flock from outsiders, so training the breed to respond to commands will definitely be a challenge.

Scottish Terrier

Scotties are tough little dogs that tend to be on the feisty side. You have a stubborn streak and tend to be fearlessly independent.

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Due to their stubborn nature, they can be difficult to train as they were bred to work separately from their owner without needing instruction. A Scottie will not stop and ask you what to do next, they will do it on their own.


Boston Terriers are known for their boundless energy and fun-loving nature. They can provide endless entertainment with their silly antics. Boston Terriers are slow to break in because they tend to resist commands and often refuse to obey the owner.

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Boston Terriers are very individualistic: some are high-spirited and clown-esque, some are stubborn characters, and some are sweet and gentle. We do not recommend adopting a Boston Terrier unless you are an experienced owner as they may be just a handful.

American Eskimo Dog

Spirited and happy, American Eskimo Dogs make great pets because of their well-behaved and friendly nature. They are loyal to their humans but can be stubborn and prone to excessive barking.

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These dogs require a lot of attention and grooming, which can make them difficult pets for busy families on the go. While they often play well with older children, their energetic nature can be too much for younger children.


The Aidi was bred as a herdsman, protecting flocks of sheep and goats. Although the Aidi dog was primarily used as a working dog, this breed also makes a good city pet if they are given enough tasks and exercise to keep them content and happy.

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It is a strong dog that is also agile, alert and ready for action. Being a sensitive breed, the dog must be trained appropriately from a young age. For him to be an ideal family pet, he needs to be exposed to as many social conditions as possible.

Bavarian mountain dog

Bavarians are social, intelligent dogs, and much like other breeds, they will become bored, unhappy, and destructive if not mentally stimulated. Continuous proper training, fitness and a lot of patience are required.

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This dog is similar to all other dogs in that they are not usually very vocal, but they can bark loudly when they feel the need to use them. Because he's so well suited to the high-energy task of tracking, this dog is a ball of energy and excitement, and requires two hours of exercise a day.

Kangal Shepherd

The Kangal Shepherd Dog breed was developed in Turkey to work as a livestock guardian dog. Kangals cannot be expected to calmly welcome uninvited human guests onto your property.

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Kangals are loyal and trustworthy towards their people or animals, but if they feel an intruder is afoot they will become very protective and aggressive which may be difficult for a new owner to handle.

Rafeiro do Alentejo

From the beginning of the breed's history, Rafeiros Alentejanos have been used in packs as hunting dogs, although this function gradually disappeared over time. More recently, the breed is a property and livestock guard dog, watching sheep and cattle.

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They also often work alone on the prairie, defending the flock from invaders, making them less than ideal as family pets.


Loyal and affectionate, Kerry Blue Terriers are strong willed and love to be given a task to keep them occupied. They have a complex temperament which means this is not a good breed for a first-time or occasional owner.

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With strangers, the Kerry Blue Terrier can be friendly or reserved, and even the friendly ones are reasonably protective. Some lines and individuals are more suspicious, others overprotective.

Canaan-The Foundation

The Canaan Dog is the oldest breed of pariah dog still in existence and is abundant in the Middle East. They're tough, agile, and seemingly tireless, making them a good fit for hikers and runners.

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Canaan dogs are smart, confident, and territorial. Canaan Dogs can be aggressive. Some cannot live with a dog of the same sex, and some will extend their aggression to any dog ​​they meet.

White Swiss Shepherd

Like the German Shepherd, the Swiss Shepherd is alert, protective, and loves to be challenged with lots of activity. This dog is more affectionate towards the owner and has high energy levels. Therefore, a lot of space is required for easy movement and exploration.

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That's why a fenced yard is ideal - not a tiny apartment in the city. While they do well around children, separation anxiety will set in if left alone for too long. This leads to destructive behavior, whether it's chewing on objects or digging up the garden.


These fluffy white dogs always look like they're grinning — because they are! Apparently, the upturned corners of their mouths keep Sammies from drooling, which prevented icicles from forming on their faces when they were bred to be arctic working dogs.

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In addition to being cheerful, Samoyeds are smart, social, and mischievous dogs. It takes a talented owner to do its best.


A huge and powerful dog, yes, but the Leonberger is also known for his aristocratic grace and elegance. A Leonberger is a friendly dog, but nobody makes a fool of it. As watchdogs and all-round workers, they display intelligence and sound judgment.

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Lions need lots of brushing and plenty of room to run around. Leonbergers are very large and strong. In addition, puppies and adolescents have a lot of energy and are extremely enthusiastic. Given these facts, proper training of the breed is essential.

Neopolitan Mastiff

The Neapolitan Mastiff is a huge, powerful guard dog whose amazing looks have intimidated intruders since the days of ancient Rome, and it doesn't take more than a single glance to understand why.

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Wary of strangers, the heavily wrinkled Mastiff is sweet, calm, and steady among loved ones, but can be difficult to control when they become territorial. These majestic guardians of amazing appearance are massive, powerful dogs.

Dutch Shepherd

Do you have livestock that needs tending? If the answer is yes, then you should definitely consider one of these dogs. If the answer is no, you might want to look into another breed. A lively, athletic, alert, and intelligent breed, the Dutch Shepherd Dog has retained the herding instincts for which it was originally developed.

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Being independent, it can easily be willful and have a mind of its own. They need plenty of exercise, both mental and physical, to keep from becoming bored and destructive.


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