The TWiMmers get cozy with symbionts: bacteria that allow a giant shipworm to oxidize sulfur, and algae that live within salamander cells.

On episode #17 of the podcast This Week in Microbiology, Vincent, Michael and Elio focus on endosymbiosis: the spread of Rickettsia in whitefiles, and a metabolic patchwork in nested symbionts of mealybugs.