Zebra Finch (image) University of Illinois at Urbana-Champaign Caption The Australian zebra finch can differentiate between a familiar song and a song it has never heard before. Hearing a new song spurs changes in gene expression in the finch brain. Credit Photo by L. Brian Stauffer, U. of I. News Bureau. Usage Restrictions Photo may be used only with stories about the research described in the news release. Please credit: Photo by L. Brian Stauffer, U. of I. News Bureau. 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.