At present, there is no global unified classification standard for pet dogs, if according to the regulations of the AKC Dog Club in the United States, pet dogs are roughly divided into 7 types: gun retrievers, hunting dogs, working dogs, terrier dogs, play dogs, family dogs and livestock dogs. These 7 classifications are more for the convenience of competition grouping, in fact, they can be roughly divided into two types: working dogs and playing dogs.

Working dogs refer to dogs that can be engaged in various tasks to assist humans, and the other is a play dog other than a working dog, most of which are small dogs, such as Pekingese, Chihuahuas, and Pomeranian, which have no other purpose except to accompany humans to relieve boredom.

To put it simply, what a working dog can do, a dog can't do, but what a dog can do, a dog can do.

In fact, dogs were first domesticated by humans in order to allow them to serve as working dogs and become allies of primitive humans in the confrontation with nature.

Working dogs can be subdivided into several types, such as hunting dogs that help people hunt, sheepdogs that guard livestock herds, service dogs that help humans solve daily life problems, sled dogs that are responsible for transportation in harsh environments, guard dogs that sacrifice their owners, police dogs and military dogs that serve special purposes, etc., there may also be crossovers between different classifications, such as German shepherds are typical multi-functional dogs, which can be used as shepherd dogs, guard dogs and police dogs.

After listening to Kuroko's narration, Zhang Zi'an immediately understood that what he really needed was a guard dog, and only a guard dog could expel beasts, attack gangsters, and protect their owners to the greatest extent in the harsh environment of the wild.

Kuroko then asked, "Great, what kind of guard dogs do you have here?"

As he spoke, his gaze crossed Zhang Zi'an and turned to the pet store.

"Well...... "Zhang Zi'an was also asked.

As netizens speculated, his store sells dog breeds suitable for ordinary families, most of which are small dogs, and there are also working dogs such as Golden Retrievers and Samoyeds, but urban families raise Golden Retrievers and Samoyeds as dogs, and no one intends to let them work.

To put it simply, there are no large and medium-sized fierce dogs sold in his store, but only large and medium-sized fierce dogs can act as qualified guard dogs in the wild, and the needs of the city and the wild are incompatible.

"Forget it, you guys come in first, don't stand outside and talk. He invited Kuroko and Xiaoxue into the store, and glanced enviously at the majestic Mercedes-Benz G.

"Well, I'd like to meet Pegasus too. Kuroko said with great interest.

Xiaoxue and Zhang Zi'an are very familiar with each other, and seeing that he did not explicitly refuse, but invited them into the store, knowing that there was a play, he was also relieved.

Netizens are not afraid to speculate about Zhang Zian with the worst malice.

"I knew that the store manager wouldn't push out the door-to-door business......"

"I think he's playing some kind of trick again, probably trying to fool people into buying a Chihuahua as a guard dog......"

"Don't say it, the Chihuahua is at least more qualified as a guard dog than the three sleds! The sled can't even protect their own chrysanthemums!"

"The barrage just now is intriguing......"

Xiaoxue has been to the store many times, and after a casual glance, she immediately noticed the new member of the store and exclaimed in surprise, "Wow! Mr. Manager, where did you get Tom?"

"Tom, who's Tom?"

Whether it is the sunspot or the clerk, or the netizens in the live broadcast room, they are all stunned, whose name is this?

Xiaoxue smiled and pointed at Vladimir, "Isn't this Tom?"

Vladimir was lazily lying in the corner, and the yellow and white kitten was crawling on its back for a while, pulling its tail for the next time, and it was always idle.

That night he brought the helpless yellow and white kitten back to the pet store, and since then the yellow and white kitten has always followed him like a fart, and he can't get rid of it.

"Meow a! What do you see me doing?"

It was recuperating for the rest of the day, when it suddenly felt that almost everyone's eyes were focused on it, and it couldn't help but open its eyes and look around at everyone in wonder, wondering what kind of illness these people were committing.

Lu Yiyun kindly corrected: "Xiaoxue, this cat's name is Vladimir, and it was brought back by Mr. Store Manager from a friend in the capital, not Tom." ”

"No, no, no, it's really Tom, it's exactly the same! don't you think?" Xiaoxue crouched down with interest, observing Vladimir carefully.

"Hell meow, who's Tom?" Vladimir was depressed and planned to lie in a different place, anyway, it didn't have any requirements for the environment, it could lie anywhere.

“Tom...... Do you mean that 'talking Tom cat'?" Wang Qian guessed.

Xiaoxue shook her head.

It was Zhang Zi'an who reacted first, "Tom...... Do you mean Tom the cat and mouse?"

"That's right, isn't it?" Xiaoxue pointed at Vladimir again, "Look carefully!"

Everyone was confused.

Zhang Zi'an smiled, "It's a shame that you can think of it, but you're right, Tom in "Cat and Mouse" is indeed very similar to Vladimir, to be precise, it is an image designed based on the Russian blue cat." ”

The clerks, customers, and netizens in the live broadcast room all listened very fresh, and knew that it was time for popular science and cold knowledge again, so no one interjected, quietly waiting for Zhang Zi'an to explain further, and even the barrage in the live broadcast room was thinned.

Zhang Zi'an did not disappoint everyone, and said: "I guess no one knows the cartoon "Cat and Mouse", right? But very few people know that the image of Tom cat comes from the Russian blue cat - you can recall, the Tom cat in the animation, is it blue-gray fur, slender limbs? The most important thing is that Tom cat's eyes are green eyes with gold edges, which is undoubtedly in line with the characteristics of Russian blue cats. ”

Although the paws of the Russian blue cat are not white, and Tom's paws in the animation are white, this point is always caught by the British short party, as evidence to prove that Tom is British short and white, but in fact this is the only evidence of the British short party, in addition, all the characteristics of Tom are 108,000 miles different from the British short, which is very close to the Russian blue cat.

In addition, as an American cartoon, and it is an American cartoon that prevailed during the Cold War, it is inevitably influenced by ideological thinking in the production process, Tom plays a silly and stupid clown who always bullies the weak in the animation, and Jerry is a small, clever and sympathetic image of the weak, who is more loved by the audience...... Even now, it's often Eastern European arms dealers or Russian intelligence organizations who are responsible for the blame in Hollywood blockbusters.