Revealing the secret of dogs identifying their owners?

Revealing the secret of dogs identifying their owners?
The scent on everyone’s body is unique, and dogs have a well-developed nose and hundreds of times more olfactory ability than humans, so dogs can smell and remember the scent of shampoo, cosmetics, and other products used by fecal collectors. We can also take advantage of this. Additionally, dogs can recognize the hormonal odor of fecal diggers through their sense of smell, so they can recognize you through their nose.

Your voice, I know
Dogs have 16 times the auditory sensitivity of humans, and the farthest distance is approximately 400 times that of humans. And dogs can distinguish sound in 32 directions. The auditory range of dogs is 15-50000 hertz, and their hearing is very good. They can hear ultrasound waves and some very subtle sounds that we cannot hear.
Dogs can understand their owners’ commands and some simple language through conditioned reflexes formed by changes in pronunciation and intonation. So dogs have a good ability to distinguish emotions from humans, and they are even more sensitive to human footsteps.
It can be said that it can hear the wind and grass around it, foresee danger, and make sounds to remind, so it is often used to guard the house. So it can distinguish a fecal digger by the sound of speaking and footsteps.

Your mark, I know
Dogs have a strong sense of territory and usually declare their territory through markings. When a dog receives recognition from its owner, it also wishes to leave its own mark on the owner to show ownership.
For example, dogs may rub or lick people, which is a marking behavior. Dogs are very sensitive to dynamic things in their surroundings, with a field of view that can reach up to 1 kilometer. When a dog recognizes its owner, it also confirms the identity of the poop collector by identifying the “marks” it has made on its owner.

Your actions, I know
Compared to humans, dogs have many unique visual features. Firstly, dogs have a much wider field of vision than humans, as they can see a range of approximately 240 degrees, while humans have a field of vision of only 180 degrees. This enables dogs to better perceive activities and potential threats around them.
Although dogs have relatively weak visual abilities, their facial features and body contours are unique. For example, by looking at your past posture, movements, etc., you can identify whether you are its owner or not. Dogs can’t actually see their faces, so it’s really useless to brush their faces.
In addition, dogs have a significant difference in color vision from humans. Dogs see the world mainly in a blue-green tone, while humans can see three colors: red, green, and blue. This means that dogs may have difficulty recognizing certain colors, such as red and green.

Your habits, I know
Dogs have long remembered the habits and behavioral characteristics of the fecal digger who lived with him for a long time. These will all become long-term memories for dogs. In fact, dogs can recognize whether you are their poop remover or not based on their daily habits~
When you go out at the same time every day, it will form a habit of going out at that time. However, when you go out, it will become a bit anxious and uneasy. Maybe this silly dog will even suspect that you are its fecal collector.

So the reason why dogs can recognize a fecal digger at a glance is because they are very familiar with the body language of a fecal digger, and just by looking at their movements, they can know which one is their own fecal digger.