The image shows a close up of a rock with a lot of small shells on it, and a polyp, a type of seaweed, scattered across its surface.
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The image shows a close up of a rock with a lot of small shells on it, and a polyp, a type of seaweed, scattered across its surface. The polyp is a dark brown color with lighter brown stripes running along its length. The shells are small and round, and are arranged in a pattern around the polyp.