The most unique animals found on earth

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6. Blue Dragon

Looking more like a critter from a fantasy movie than a real beast, the blue dragon is actually a bitsy ocean slug, just about three centimeters long. It floats on the ocean’s face using an air bubble trapped in its belly and feeds on toxic doormat like the Portuguese man-of-war. Astonishingly, it indeed steals their smart tentacles to use as its own defense!