<i>Heliconius melpomene</i> Wing Close-Up (IMAGE) Smithsonian Tropical Research Institute Caption Based on the new sequence, scientists found that different species copy each other's wing patterns by exchanging genes, a process thought to be very rare, especially in animals. Credit Mathieu Joron Usage Restrictions Credit: Mathieu Joron License Licensed 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.