Tail wagging is a key part of canine body language. It conveys emotions, intent, and reaction to environment.
Fast wagging with wide side-to-side motion often indicates a happy, enthusiastic dog feeling eager and upbeat.
A slight, loose wag with the tail held horizontally signals interest, curiosity and attentiveness to surroundings.
Low, stiff, quick wagging can mean a dog is feeling nervous or insecure about something in the environment.
A tail held high with slight wagging indicates confidence. Slow wags with tail directly upright signal dominance.
Slow, stiff wags with tail held high or low hint a dog may become aggressive. Other signs like snarling validate this.
A tucked tail wagging erratically often means a dog is frightened or feeling threatened by something.