Microbial Strings of Pearls (image) DOE/Lawrence Berkeley National Laboratory Caption "Strings of pearls" (arrow and upper inset), whose pearls are up to three millimeters in diameter, were found where SM1 Euryarchaea live in close association with bacteria in the cold sulfidic streams of Germany's Sippenauer Moor. Part of a pearl (lower inset) reveals colonies of microscopic spherical SM1 surrounded by filamentous bacteria. Credit Moissl-Eichinger group Usage Restrictions With credit as given 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.