The Two Closely-Related Bird Species (IMAGE) Hokkaido University Caption The two closely-related bird species, zebra finches (left) and owl finches (right), and their hybrid offspring (center). (Wang H. et al., PLOS Biology, November 13, 2019) Credit Wang H. et al., <i>PLOS Biology</i>, November 13, 2019 Usage Restrictions This image is copyrighted and can be used for reporting this research work without obtaining a permission if credited appropriately. 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.