Kangaroos do indeed use their tails as a form of non-verbal communication, which is an interesting aspect of their behaviour. Here are some interesting points: 1. Tail positioning: The position of a kangaroo's tail can convey different messages. For example, a relaxed tail usually indicates a calm state, while a stiff, upright tail might signal alertness or potential aggression. 2. Thumping: Kangaroos will sometimes thump their tails loudly on the ground. This behaviour serves multiple purposes: