Mismatched warbler video (VIDEO) Penn State This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption An extremely rare hybrid warbler with mismatched color patterns has allowed Penn State researchers to tease apart the genetic drivers of these patterns. Credit Penn State 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.