Before they turn into "swans," they live happily in their watery world, eating their fill of tadpoles, mosquito larvae and water snails-unless they themselves fall prey to fish, predaceous diving beetles or adult dragonflies. Together all these organisms form a biological chain which enriches Taiwan's wetlands.
醜小鴨變天鵝之前，就悠哉於水生世界，盡情捕食蝌蚪、孓孑、螺貝，自己也是魚兒、龍蝨、大蜻蜓覬覦的對象，彼此形成的生物鏈，豐富了台灣的濕地。