The image shows a close up of a piece of wood on the ground next to a ruler, with a scale on the left side of the image.
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The image shows a close up of a piece of wood on the ground next to a ruler, with a scale on the left side of the image. The wood appears to be a type of woodworm, with its distinctive ridges and bumps on its surface. The scale is likely used to measure the size of the woodworm.