Study co-authors Michael Boppré (right) and Otti Fischer, of the Forest Zoology and Entomology Department at the University of Freiburg in Germany, review images of the sound plates found in butterfly pupae. Other co-authors (not pictured) included: Patrick Dolle and Philipp Klein, also of University of Freiburg; Hans-Ulrich Schnitzler of the Institute for Neurobiology at the University of Tübingen; and Lawrence E. Gilbert of the Department of Integrative Biology at The University of Texas at Austin. (Photo credit: Eva Schottmüller)