What's the point of Labrador wagging his tail?

Labrador retrievers, as a kind of dog, find it difficult to express their emotions directly, but they can describe their emotions through body language, and the body part that can best express their thoughts is the tail, because the tail is always swaying.

If Labrador's tail wags easily, it proves that it is happy and relaxed at this time.

If its tail is caught, it proves that they are nervous or a little scared at this time, indicating a state of submission.

If its tail is stiff and straight, then Labrador is hostile at this time, and they seem to be defending their position at this time.

Therefore, the dog's mood can be simply understood. As long as the owner is careful, he can take better care of his dog.