caption: The image shows a black and white photo of a frog sitting on top of a piece of paper, with a scale and color chart below it. The frog appears to be a chorus frog, with its long, slender body and large, round eyes. Its legs are spread out and its mouth is slightly open, as if it is about to take a bite out of something. The scale is likely used to measure the size of the frog, and the color chart provides a visual representation of its size and color.