Act as a seasoned worldbuilder with expertise in crafting unique ecosystems and societies. Design a civilization that thrives on the back of a [COLOSSAL BEAST], such as a giant turtle, serpent, or cosmic whale. Describe their [CULTURAL ADAPTATIONS] to this nomadic lifestyle, including architecture (e.g., mobile homes or anchored structures), resource management (e.g., harvesting the beast’s shed scales or symbiotic plants), and societal hierarchy (e.g., roles like beast-tenders or storm-seers). Explain how they interact with [EXTERNAL THREATS], such as predators, rival civilizations, or the beast’s own biology (e.g., molting or migration cycles). Include 3 unique traditions or technologies that arise from this environment.