The role of subterranean termites in recycling of wood is fundamental for the ecosystem. They are responsible for the disappearance of many tons of decaying wood every season, and all their components are reintroduced into the cycle of life. But, there is a problem. Cellulose and a matrix of lignin, the main components of wood, are not digestible for most of the animals. Their secret is inside them, and viewers will see the myriad of tiny and microscopical living beings that inhabit the intestine of the termites. The tiny symbionts that are capable to break down the molecules of cellulose and to liberate the molecules of sugar for the nourishment of termites.