caption: The image shows a page from a book with a variety of sea urchins, each with its own unique shape and size. The page is filled with intricate details, from the shells to the intricate patterns of the shells. The shells are arranged in a circular pattern, with some overlapping each other, and the colors range from light to dark shades of blue and green. The text on the page is written in a bold font, adding to the overall aesthetic of the image.