Public domain photos

The image shows a black surface with a ruler and a piece of paper on top of it, and a group of corals scattered across the surface. The corals appear to be of various shapes and sizes, and the paper has some text written on it.

The image shows a black surface with a ruler and a piece of paper on top of it, and a group of corals scattered across the surface. The corals appear to be of various shapes and sizes, and the paper has some text written on it.Open in library