Which of the following is NOT typically listed as a stress signal in dogs?

• A. Drooling
• B. Wagging tail
• C. Yawning
• D. Lip licking

Answer: (B)

Understanding how dogs show stress involves looking at patterns of behavior, not a single cue. Tail wagging is a flexible signal that often reflects arousal, excitement, or friendliness rather than a definite state of stress. Because its meaning changes with context—speed, height of the tail, body posture, and accompanying signals—a wagging tail isn’t a reliable indicator of stress by itself. That’s why it isn’t typically listed as a stress signal.

In contrast, signs like lip licking, yawning, and drooling tend to appear more consistently when a dog is stressed or anxious, especially when seen with other tense cues such as avoidance, a stiff body, or a tucked tail. The important takeaway is to read the whole body and the situation together rather than relying on a single signal.