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Ancient shells hold mysteries from the deep in this excavation activity from below the sea. 12 unique creatures include a dolphin, clown fish, killer whale and more. Use the exploration guide to identify and learn about each one. Simply soak the clay clamshells in water, then carefully chisel away the sedimentary material to reveal the sea creatures inside. • Each fluted clamshell contains a different sea creature• Helps promote an early interest in science for kids• The perfect activity for parties and groups • 12 clamshells, chiseling tool and instructions