The Mozambique and Madagascar expeditions are the first part of Our Planet Reviewed. This programme which is organised by the Muséum national d'Histoire naturelle (national museum of natural history) and the NGO Pro Natura International aims to enhance the knowledge of the biodiversity Biodiversity is the diversity of all the forms of living. Schematically, biodiversity is studies at three levels: ecosystems, the species of which these ecosystems consist and finally the characteristic genes of each species.of the regions containing the highest number of species and of the most threatened regions of the world in order to better protect them.