Most Comprehensive Tree of Prokaryotic Life (image) Molecular Biology and Evolution (Oxford University Press) Share Print E-Mail Caption Researchers at Temple and Oakland universities have completed a new tree of prokaryotic life calibrated to time, assembled from 11,784 species of bacteria. The new tree explores grand patterns of evolutionary change that, surprisingly, has revealed remarkable similarities with that of eukaryotes, including animals, plants, and fungi. Credit Temple University Usage Restrictions None Share Print E-Mail 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.