Repeatedly Evolved Host-Specific Ectosymbioses between Sulfur-Oxidizing Bacteria and Amphipods Living in a Cave Ecosystem Bauermeister, Jan ; Ramette, Alban ; Dattagupta, Sharmishtha Abstract Publication: PLoS ONE Pub Date: November 2012 DOI: 10.1371/journal.pone.0050254 Bibcode: 2012PLoSO...750254B