Multimedia Gallery
November 5, 2009
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Heliconius cydno (white) and H. pachinus (yellow) butterflies.
Color pattern-based mate preference has led to the evolution of White Heliconius cydno and Yellow (H. pachinus) butterflies, considered two different species, from opposite coasts in Costa Rica.
Credit: Marcus R. Kronforst, Harvard University.
Images credited to the National Science Foundation, a federal agency, are in the public domain. The images were created by employees of the United States Government as part of their official duties or prepared by contractors as "works for hire" for NSF. You may freely use NSF-credited images and, at your discretion, credit NSF with a "Courtesy: National Science Foundation" notation.
Additional information about general usage can be found in Conditions.
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Related story: Butterflies in the Same Milieu, Mate With Others of Like Hue