Phylosymbiosis Tree (IMAGE) University of California - San Diego Caption A phylosymbiosis tree diagram demonstrates the wide variety of gut microbiome composition in bats and birds (marked with black bars) compared to other mammalian species Credit UC San Diego Health Sciences and mBio Usage Restrictions This image may only be used in discussion of this research 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.