Generally speaking, dogs' IQ is judged by whether they can understand and complete human instructions and their memory and learning abilities, while grass dogs are rated at the bottom of the dog IQ ranking because they don't follow instructions. If this is the reason for the low IQ of grass dogs, it is a bit far-fetched.
The most important feature of grass dogs is understanding. They can read the subtle expressions of their owners, perceive their facial expressions, and improvise, which is very intimate. There is a saying in China that calling people names "You are the dog around others" is actually a compliment to the clever skill of Chinese garden dogs.
Grass dogs are alert to the slightest noise, and their nerves are always in the most awake state, so they can bear the brunt of this situation. Grass dogs will also be wary of strangers approaching outside. Generally speaking, they don't eat food given by strangers. Independent, witty and quick-witted.
Grass dogs have strong viability. Even abandoned stray dogs will comb their hair carefully and try their best to find food to sustain their lives. They are not picky eaters, and there is no so-called princess disease.
They wag their tails when they are happy, show their stomachs when they are spoiled, lick your hands when they are touched by you, and even when they are sick or dying, they will choose a place where no one is there and silently avoid human beings. Their thoughtfulness and loyalty are distressing. There is no distinction between high and low in the dog world, and every life deserves to be loved and respected.