caption: The image shows a large brown sponge on the bottom of the ocean, surrounded by a variety of aquatic plants. The sponge is situated in the center of the image, with the ocean floor visible beneath it. The colors of the sponge range from light to dark shades of brown, and the plants are a mix of greens, yellows, and oranges. The water is crystal clear, allowing us to see the intricate details of the coral and the surrounding environment.