Bill Muir (image) Purdue University Caption Purdue's Bill Muir was part of an international research team that found commercial birds are missing more than half of the genetic diversity native to the species. The researchers suggest that interbreeding additional species with commercial lines might help protect the industry. Credit Purdue Agricultural Communications file photo/Tom Campbell Usage Restrictions None 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.