What is the purpose of a rabbit's tail?

The purpose of a rabbit's tail is primarily to act as a visual communication tool. It helps in signalling emotions, intentions, or warnings to other rabbits. When a rabbit is relaxed or content, its tail may rest flat against its body. However, when the rabbit is alarmed or frightened, its tail can quickly rise up in an erect position to signal danger. Additionally, rabbits use their tails for balance while hopping and for propulsion during quick turns or jumps.