Special butterfly exhibit at the Seattle Zoo, Washington, USA
Underside of Pipevine Swallowtail (Battus philenor). Notice the striking coloration of the lower wings, not visible from above.
Patricia Jones (photographer; copyright holder), Animal Diversity Web
George Hammond (identification), Animal Diversity Web
This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License.