Aggression or warning — Dogs

The story behind the answer

Aggression or warning is shown by classic threat signals: lips lifted to bare teeth, wrinkled muzzle, hard stare, tense face and body, and often a forward-leaning posture with a stiff tail. These are distance‑increasing cues that mean “back off.” In contrast, play looks loose and wiggly with a play bow, and fear/submission shows a lowered body, tucked tail, and avoidance.

Understanding the “ladder of aggression” helps: dogs typically warn before biting. Respecting those signals prevents escalation—never punish a growl, or you may remove the warning and get a bite without notice. Quick memory tip: “Stiff + stare + teeth = beware.”