There are many kinds of dogs in the world. A large number of recent genetic research results show that there are about 450 existing dog species. Scientists have determined through research that the ancestors of dogs are wolves. Humans have been raising dogs about 100,000 years ago, and selectively use different types of dogs for different purposes. For example, "petite" dogs are used to hunt foxes or rabbits, and tall dogs are used to guard herds.

According to different bloodlines, dogs can be divided into:

Purebred dogs: Purebred dogs have a more beautiful appearance and a more well-proportioned body, and are more suitable for indoor viewing or special breeding purposes; and after years of breed improvement, purebred dogs have different personalities, functionality, and body shapes depending on their breeds. Have their own characteristics.

Mutt dogs: Most people think that mutt dogs have stronger resistance and are easier to raise.

There are currently about 400 species of famous dogs with pure bloodlines in the world. Among them, there are more than 100 kinds of famous dogs that are loved and recognized by people.

Our country has also bred more than ten famous dogs, such as: Pekingese, Pug (axe dog), Chow Chow, pet Chinese dog, pet Chinese dog, Shih Tzu (Chinese lion dog), Chinese crested dog, pet Chinese hound , Shar-Pei, pet Chinese Mastiff, etc.

According to different functions, dogs can be divided into:

Rescue dogs: such as Saint Bernard dogs, etc.

Livestock dogs: such as wolf dogs, shepherd dogs, Saint Bernard dogs, etc.

Hunting dogs: such as English hounds, British short-haired hounds, medium-sized Japanese dogs, etc.

Military and police dogs: such as Doberman Pinscher, Wolf Dog, Boxer Dog, etc.

Racing dogs: such as Soviet-Russian shepherd dogs, etc.

Fighting dogs: such as bulldogs, Tosa dogs, pit bulls, etc.

Guardian dogs: such as wolfdogs, bulldogs, boxer dogs, etc.

Guide dogs: such as golden retrievers and wolf dogs.

Toy dogs: such as Dachshund, Lion Dog, Fox Terrier, Chihuahua, Yorkshire Terrier, Pekingese, Pomeranian, Maltese

Dogs, butterfly dogs and other small and ultra-small dogs.

The following is a detailed introduction to several common varieties:

1. Great Pyrenees

If you want a dog:

　• Very huge like a white bear

​• Solemn, stable and mature, even a little clumsy

　• Most of the time, I can be leisurely and quiet at home

• Have a strong character and ability to protect your property

• willing to accept moderate training

​If you don’t want a dog:

• Takes up a lot of space

​• It’s so heavy that it even lies next to your legs, leaning against you or lying on your feet

• When you are left alone at home for too long, you will develop certain destructive behaviors.

​• Needs to be kept out of social contact with other dogs, and may exhibit intimidating and aggressive behavior.

• Be aggressive toward animals that do not belong to your home.

• It needs a responsible and stable owner. It has a strong sense of belonging and loyalty to its owner and cannot change owners easily.

• If you keep it in the yard, please provide a fence of more than 1.8 meters to prevent it from getting lost.

• A low growling sound will be heard at night.

• Severe hair loss.

​If you want a great white bear, you need to consider:

1. Provide appropriate exercise. Puppies need enough exercise to keep them thin and healthy to prevent excessive obesity from damaging their joints, bones and ligaments. Adult dogs need more exercise to stay lean, but hot flashes should be avoided to prevent overheating. If you don't get enough exercise or spend too much time alone, you will become lawless.

2. Provide adequate social communication. It needs exposure to friendly strangers and animals to help it differentiate between good guys and bad guys and reduce its alertness.

3. If you have children at home, it is not recommended to raise them, because big white bears under three years old are very energetic and often run around, which is a safety hazard for children.

4. Will want to dominate or attack strange dogs. He doesn't get along well with cats either.

5. The shedding is severe, even in your food, I’m sure you can tolerate it.

6. Loyalty to the owner makes it difficult to be raised and trained by others.

7. If you cannot train it to respect you, it will become want to control you. You must let it know your orders. It requires strict obedience and consistent execution without any discount.

8. Unless you live in a single-family villa, do not put it in the yard, otherwise its bark will make you a public enemy of the community.

9. Frankly speaking, it is not a dog that can be controlled by people with insufficient abilities.

2. Border Collie Border Collie

​If you want a dog:

•Medium-sized dogs

• Handsome appearance, easy to care for fur

　•Be in good health

​• After good training, they will be extremely versatile and learn to do almost everything

​• I’ve been playing picking games with you for hours

​If you don’t want a dog:

• An extreme sportsman, if it does not provide a lot of exercise and creative games to vent its almost unlimited energy, it will even drive you to the point of desperation with destructive and obsessive behaviors.

• A strong urge to chase and bite moving objects. Such as: joggers, children, bicycles, other animals.

• Has separation anxiety and will bark and engage in destructive behavior if left alone for too long.

• Timid or suspicious when not sufficiently socialized or around strangers.

​• Hair loss

• Serious health problems.

If you want one, you need to consider:

1. Provide enough exercise and stimulating games. They must be kept busy with activities that interest them or they will become lawless, such as destructive chewing and barking. Border chewers are known for their destructive power, chewing out the stuffing on your couch and turning your yard into a moon-sized crater. Recommendation: If you just want a house pet and don’t want to spend time and energy running, hiking, biking, swimming or herding with it, or taking it to participate in obstacle course obedience competitions or tracking, this breed is not recommended. Borderies have never been inclined to be simple family pets, and their work behaviors (chasing, biting, prying, barking) are not suitable for ordinary domestic environments. These natures can only be solved by finding appropriate cathartic activities for them. Those who try to simply suppress them have little effect.

2. Involuntarily chase and track any moving target. Unfortunately some borders even hunt small animals including cats. It is not recommended to keep a Border Collie if there are elderly, children or the infirm at home. The desire to bite moving humans is too strong before the age of two.

3. Separation anxiety disorder. More than other breeds, Borderies require a large number of companions and do not like to be alone. They will chew and bark when left alone for more than a passing hour. This type of dog is obviously not suitable if you work during the day.

4. Provide sufficient social activities. Borders need to be constantly exposed to different looks and sounds, otherwise their innate caution will make them timid and suspicious, making them difficult to live with and causing defensive biting incidents.

5. The Border is one of the smartest dogs and the most obedient dog in the worldDog with the best sex. Many Borderies are eager to please their owners and learn very quickly. But many frontiers are very difficult to train for the average person.

o Some borders have a strong desire to manipulate, and they will use their wisdom to make you do what they want you to do. (As expected, he is as cunning as an 8-year-old child. Haha)

o Some borders want to be your master. They are willful and aloof. You must prove to them that you have the ability to make them do things.

o Some borders are very sensitive. If you correct their mistakes too harshly, they may refuse to listen to your instructions and become autistic.

o Finally, many Borders have frustrating training results because they overreact to your sounds and movements. They think they have foresight and are always trying to guess what you will do next, so when you just open your mouth or raise your hand, they will make various actions based on their judgment. Their unwillingness to sit there and wait for you to actually give a command and then respond can drive you crazy. Suggestion: Find an experienced dog trainer and force train the dog to respect you.

6. Hair loss. Border shedding is beyond your wildest imagination. When you pet it, its fur falls out of your hands and sticks to upholstery, clothes, and hides under furniture.

7. Serious health problems. Borders are at high risk of health problems such as hip joints, eyes, and epilepsy. Highly recommended: Give the border fresh chicken, beef, rice, oats, fruits and vegetables. But this does not mean letting it eat human food! Vaccines are not completely harmless, and over-immunization may even increase the risk of disease. You need to record the date of immunization and develop an immunization plan.

8. Quite a few borderers are escape artists. Smart borders can even pick locks.

Frankly speaking, the Border is an excellent working dog, but a problem dog for the average family. Very few people can provide what the breed really needs in order for it to behave satisfactorily and perform well.

3. Toy VIP toy poodle

The toy poodle is introverted but energetic, stubborn but peaceful, serious but sweet-looking, a good-tempered goofball, and the most important thing is that he loves everyone. If you get a Toy Poodle puppy, there is no guarantee that it will grow up to have the personality described above. A significant number of purebred puppies grow up and do not meet the required traits.

​If you want a dog:

​• Compact, portable, elegant, lively and agile

• Curly hair, no shedding. The best varieties are even hypoallergenic.

• Various colors

　• Lively

• One of the most intelligent and attentive breeds, intuition can help it predict your body language and expressions

​• Outstanding obedience and agility

• Usually polite to strangers and friendly to other animals.

​If you don’t want a dog:

• Careful observation is necessary to avoid highly nervous VIPs.

• Will become timid and frightened when not exposed enough to the social environment.

​• Emotionally sensitive under pressure and loud noises

• Brush and cut curly hair every month

• Barking

​• A large number of health problems

If you want one, you need to consider:

1. Unstable character. People who breed Poodles for sale do not care about the temperament of the dogs. Canine experts believe that large numbers of Poodles exhibit neurotic behaviors such as snapping, extreme fearfulness and hyperactivity.

2. Provide sufficient social activities. Otherwise, they will be difficult to get along with due to their cautious nature and will bite defensively.

3. Emotionally sensitive. Poodles are peaceful and sensitive dogs that require a harmonious family atmosphere. If there are people in the family who are easily agitated, argue loudly or fight, the VIP will have neurotic behavior and be accompanied by gastrointestinal and digestive diseases.

4. Love to dress up. Its curly hair needs to be trimmed every four to six weeks, and don't give it some funny haircuts based on pet pictures.

5. The toy poodle will bark at new people and sounds, and you have to stop it. Because it is easily frightened and barks, it must not be left alone in the yard.

Health issues: VIPs can live very long lives, but they also suffer from more joint and eye diseases.