Saliva Samples (IMAGE) University at Buffalo Caption These are vials of saliva collected from various mammals, including a pig. Credit Douglas Levere / University at Buffalo Usage Restrictions This image may only be used in news stories discussing the research described in the related press release. 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.