Our world is overflowing with exceptional ecological treasures, and yet they are more and more threatened by our own economic development. To protect these sanctuaries of virgin nature, numerous solutions have been studied, but the only viable ones are rare, complex and not always as effective as they should be. Among those that have been tested are sustainable development, repression, large-scale ecological projects and the fairly new concept of eco-tourism. These policies however, designed to protect endangered sites or species often lead to failure or a distortion of the original intention. From the delta of the Danube to Patagonia, passing by Madagascar, Reunion Island and the Everglades, Jangal invites you to discover the secrets that surround the difficult task of protecting these natural earthly paradises.