The lion turtle, also called Ancient One by the spirits,[1] is a chimerical hybrid of a lion and a turtle and the largest known animal in the world. In the era of Raava, lion turtles populated the Spirit Wilds, where they served as protectors of mankind by housing human cities on their backs.[2] As indicated by the symbols on their foreheads, lion turtles showed affinity for one of the four bending arts and possessed the ability to grant individuals with the power to control the specific element to which they were attributed.[1]