Public domain photos

The image shows a close up of a fish on a ruler, with text at the bottom of the image. The fish appears to be a gudgeon, with its long, slender body and pointed fins. Its scales are visible, and its eyes are large and round. Its mouth is slightly open, revealing its sharp teeth.

The image shows a close up of a fish on a ruler, with text at the bottom of the image. The fish appears to be a gudgeon, with its long, slender body and pointed fins. Its scales are visible, and its eyes are large and round. Its mouth is slightly open, revealing its sharp teeth.Open in library