Bilateral Symmetry

I apologize that there is no Cookie of Verification, but this picture was taken at Greenfield Village when I went with my family about three weeks ago. I did not have mini cookies on me at the time... lesson learned. Anyway, this beautiful butterfly is a perfect example of Bilateral Symmetry. In bilateral symmetry, one plane (called the sagittal plane) divides an organism into mirror-image halves. From the markings on the wings, they seem to exhibit the mirror-image look.