The Microbials discuss how ambrosia beetles utilize ethanol to farm fungi, and how cleaved cochlin protein sequesters bacteria in the inner ear to preserve hearing function.

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

Vincent, Elio, Michael, and Michelle discuss a symbiosis between a bacterium and fungus that increases the virulence of oral biofilms, and the assembly of amyloid fibers, which are needed for biofilm formation.

Vincent, Elio, and Michele review how horizontal gene transfer from bacteria to an insect genome enables a tripartite nested mealybug symbiosis, and how probiotic bacteria work by competing for iron in the intestine.