Being no taller than a few
                                                                              centimetres, termites can
                                                                              erect towers many meters
                                                                              high without using any
                                                                              tools. This admirable nest
                                                                              perfectly protects the
                                                                              inhabitant termite colony
                                                                              with a population of over a
                                                                              million from their enemies
                                                                              and unfavourable external
                                                                              life conditions.