Mark Martin returns to TWiM to join the discussion of how to design a complex gut microbiome, and protection of protists from virus infection by intracellular bacterial symbionts.
The TWiM team reveals thousands of small novel genes in the human microbiome, and a mutualistic symbiosis between marine protists covered with magnetosome-containing bacteria.
Vincent, Michael, and Elio discuss changing populations of Emiliania huxleyi and their viruses in the North and Black Seas.