Appalachian Tiger Swallowtail (image) University of Texas at Austin Share Print E-Mail Caption Kunte et. al. recently discovered that the Appalachian tiger swallowtail butterfly evolved through the hybridization of Eastern and Canadian swallowtails. It is a rare example of hybrid speciation in an animal. Pictured here is a female Appalachian tiger swallowtail. Credit Krushnamegh Kunte Usage Restrictions None Share Print E-Mail 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.