In order to preserve their traditional way of life, they rarely interact with the modern world or with outside civilization. Outsiders are not allowed inside their ancestral lands.[6] The Kogi Mamos say that the balance of the earth's ecology has been suffering due to the modern-day devastation of resources by Younger Brother. The Kogi Mamos in turn believe that their work as Elder Brother is instrumental in helping to prolong and protect life on earth.