Dogs will realize that one day they will eventually leave the world, so they will leave their hometown several times when they die in order to find a region that can leave comfortably. For example, rural dogs usually do digging soil and digging land in areas that are very close to their hometown, not expecting to make the owner feel sad when they see it.
Dogs have a long time dating with their owners. They are also very emotional. When they understand that they are about to die, they will be reluctant to leave their owners and have a stronger sense of dependence. They often stick to their owners, see their owners in a vain and think about it, and they hope to stay by their owners' side. At this time, the owner needs to understand that they spend more time waiting for the dog to survive the remaining dog life.
Dogs usually make painful hums before their death. Because they realize that they have very little time, they make hums because of their physical pain and discomfort, and on the other hand, they want to make their owners pay attention and tell them that their body is in pain now and they are about to be unable to survive.
When the dog gets older, the auditory system will decrease and the owner will usually not hear his owner calling them. Therefore, if you summon your dog, the dog will not respond to you, but in fact they will no longer hear it. The owner should be patient and wait for the dog to respond to you.