Phylogenetic Tree (IMAGE) University of Queensland Caption The 'tree of life' for the bacterial world, bacteria's taxonomy in a phylogenetic tree. Credit The University of Queensland Usage Restrictions Only to be used with this story. 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.