caption: The image shows a tray filled with a variety of shells, including clams, on top of a table next to a ruler. The clams are arranged in a neat pattern, with some of them overlapping each other, and the ruler is placed in the center of the tray. The colors of the clams range from light brown to dark brown, and some of the shells have a glossy sheen. The table is a light wood color and the background is a neutral color.