I believe that many pet owners who raise dogs have seen dogs stretch. Many people think that it is because dogs are tired. In fact, you have misunderstood. Dogs stretching still implies the following meanings!
Some pet owners like to do yoga at home, and they will imitate when they see it. Dogs are not as flexible as humans. Sometimes, in order to keep up with their owner's rhythm, they usually practice hard.
So sometimes dogs stretching may be practicing the famous "cat-style yoga". Many people misunderstand and think that the dog feels tired!
The dog's movement of stretching is a bit like a human being protrude. If your dog often stretches at you and looks very pious, it means that the dog has already recognized you as the main one.
It does this action, just like worshiping the wolf king, showing loyalty and obedience to you!
Dogs smell their butts together. When the dog is half lying on his butt and facing him with his butt, he is giving you important parts. Dogs do this, in fact, are confessing to you and saying "I love you" to you!
It is a very intimate behavior for a dog to face you with his butt, and it is very likely that he will regard you as his mother!