Termites can be considered as the best earth builders. Building with earth is inherent to their nature. Termites stabilise the soil with their saliva. The latter is sticky, as it is issued for the digestion of cellulose, and it binds the grains of soil. This allows them to build such wonders. Termites can also be considered as the best air conditioners. Their hills are meant to regulate temperature and moisture, in order to allow them to live.