The image shows a group of four different types of helix shells on a black surface, with two papers with text written on them in the background.
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The image shows a group of four different types of helix shells on a black surface, with two papers with text written on them in the background. The shells are arranged in a triangular formation, with the largest shell in the center and two smaller shells on either side. The text on the papers appears to be a description of the shells, providing further information about them.
