Saliva (2) (IMAGE) University at Buffalo Caption Petar Pajic, UB PhD student in biological sciences, holds a saliva sample from a ferret. The saliva has been combined with a buffer containing a blue dye, which helps scientists track the sample while using a gel electrophoresis technique to separate mucins from other proteins in saliva. Credit Douglas Levere / University at Buffalo Usage Restrictions This image may only be used in news stories discussing the research in the related press release. License Original 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.