Public domain photos

The image shows a close up of a rock with a lot of small holes in it, which is a photo of stony coral. The coral is a light brown color and has a rough texture. The holes are evenly spaced and have a distinct pattern of ridges and grooves.

The image shows a close up of a rock with a lot of small holes in it, which is a photo of stony coral. The coral is a light brown color and has a rough texture. The holes are evenly spaced and have a distinct pattern of ridges and grooves.Open in library