Heliconius butterflies (IMAGE) Ludwig-Maximilians-Universität München Caption Prof. Dr. Richard Merrill: How butterflies choose mates: gene controls preferences Credit Carolin Bleese / LMU Usage Restrictions The images may be used free of charge for editorial purposes, with the copyright "Carolin Bleese / LMU". License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.