Rights: Diversity and Distribution of Methanotrophic Archaea at Cold Seeps. Katrin Knittel , Tina Lösekann, Antje Boetius, Renate Kort & Rudolf Amann.  doi: 10.1128/AEM.71.1.467-479.2005 Appl. Environ. Microbiol. January 2005 vol. 71 no. 1 467-479 Published 3 October 2012 Size: 62 KB

Scanning electron micrograph of methanotrophic bacteria found at a cold-seep site. The cylindrical bacteria ‘feed’ on the methane present in the water column issuing from the seep.