Study found kangaroos depend on their tail not for balance or as a kind of crutch to lean on, but as a muscular, very important fifth leg.
Tripodero- lumberjack folklore: a creature with two telescopic legs that could extend and retract. It stored mud in its cheeks so that it could shoot mud pellets from its snout of a head. It used its kangaroo tail as a stabilizer when its legs were fully extended like a tripod. When legs were retracted it could move pretty quickly through the bush