Public domain photos
The image shows a black and white drawing of a frog with a needle in its mouth, attached to a board with text written on it. The frog appears to be in mid-air, with its legs stretched out and its head tilted back. Its eyes are wide open and its mouth is slightly open, as if it is about to take a bite out of the needle. The text on the board is written in a bold font and is likely a description of the frog's anatomy.
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