Woodpeckers use their strong beaks to hammer holes in decaying trees and then lick out termites with a long sticky tongue. Other animals that feed on termites include bears, turtles, salamanders, crows, blue jays, blackbirds and winter wrens. The tiny protozoa actually digest the cellulose found in wood fibres. The termite actually uses the byproducts created by the protozoa as a source of food. This is an example of mutualism.
Mutualism means that both partners benefit from the relationship.
The termite and the protozoa both benefit by living together in this unusual relationship. The protozoa have their food delivered by the termite, and the termite benefits from the actions of the protozoa in its gut. If termites don't have protozoa in their bodies, they continue to eat wood but are unable to digest it and die. Termites, like ants, are social insects. Thousands of whitish workers take care of the queen, her eggs and the larvae.