Dogs often treat columnar objects such as telephone poles, trees, roadblocks, etc. on the side of the street as "public toilets" and urinate anywhere. This is actually related to the animals' territorial marking behavior. They will mar...
Dogs often treat columnar objects such as telephone poles, trees, roadblocks, etc. on the side of the street as "public toilets" and urinate anywhere. This is actually related to the animals' territorial marking behavior. They will mark them everywhere with urine, telling the same kind of "this is my territory", and at the same time telling the opposite sex about it.
Then why do you need to pick a pillar to mark it? In fact, they just want to find a higher place. Dogs raise one leg and pee not because they like to clean, but because they want to pee higher, almost to the height of their noses, so that their pees can easily smell, and pee higher is conducive to the spread of the odor further.
In addition, dogs can judge each other's body shape by the height of the same type of urine. If they urinate higher, they can make them look taller.
Further reading: Why does a dog raise his hind legs high when peeing?
1. The reason why dogs raise their hind legs when peeing is because they want to maintain the freshness of the odor signal as much as possible. So, in order not to let the odor be covered, they cannot urinate on the flat ground, but on the vertical plane, so they need to lift their legs.
2. We mentioned above that dogs' urine is a tool for them to socialize, and the location of urine is the main factor for dogs to judge the size of the other person. Because most dogs with large sizes also have high urine positions, while small dogs, in order to make other dogs mistakenly think that they are tall, will try to raise their legs to pee so that the pee position can be as high as possible. There is a certain "bluff" component here.