The image shows a black sea urchin on the bottom of the ocean, its spines radiating outwards from its center.
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The image shows a black sea urchin on the bottom of the ocean, its spines radiating outwards from its center. Its body is covered in a thick, dark shell, and its tentacles are spread out in a fan-like shape. Its color is a deep, dark black, and it stands out against the sandy ocean floor.
