Public domain photos

The image shows a close up of a black and white photo of a rock, which appears to be a microorganism. The rock is zoomed in, allowing us to see the intricate details of its structure, such as its ridges and grooves, and the text at the top and bottom of the image.

The image shows a close up of a black and white photo of a rock, which appears to be a microorganism. The rock is zoomed in, allowing us to see the intricate details of its structure, such as its ridges and grooves, and the text at the top and bottom of the image.Open in library