Termites are social insects and live in colonies comprised of
different castes. Although they vary slightly between species,
there are typically three castes in a termite colony. These
three castes all work to ensure the ultimate survival of the
colony. Of the three castes, soldier termites are responsible
for the protection of their colony. Soldier termites often are
equipped with enlarged mandibles which aid in defense against
predators and other threats. The enlarged mandibles also render
soldier termites incapable of feeding themselves; worker
termites are responsible for feeding other termite castes.
Although termites usually do not attack without provocation,
their colonies are often assaulted by natural predators such as
ants. When this occurs, soldier termites sacrifice themselves by
remaining outside of the breached colony while workers repair
any damage.