<i>Haplopteris</i> Fern (IMAGE) Duke University Caption A gene that became critical to the survival of many ferns (pictured) came from an unexpected source: hornworts, a group related to mosses. Credit Fay-Wei Li Usage Restrictions None 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.