Public domain photos

The image shows a close up of a rock with a small hole in it, which appears to be a burrow. The burrow is made of a light-colored material and has a curved shape with a pointed end. The hole is slightly raised from the rock and is surrounded by a thin layer of sand.

The image shows a close up of a rock with a small hole in it, which appears to be a burrow. The burrow is made of a light-colored material and has a curved shape with a pointed end. The hole is slightly raised from the rock and is surrounded by a thin layer of sand.Open in library