The site includes habitats in excellent conservation conditions, thanks to its inaccessibility. Some habitats occupy large areas (for example pine trees). There is also a high concentration of endemic and rare species, including Gentiana froelichii (zenarii species), Arenaria huteri, Cypripedium calceolus, Bellflowers and Physoplexis comosa. The reduced anthropization and the exceptional vastness of the alpine mountain area characterize the site, that hosts many species. Particularly noteworthy: the chiropteran fauna (Barbastella barbastellus, Pipistrellus kuhlii, Plecotus macrobullaris), the Horvath’s rock lizard (Iberolacerta horvathi), the black salamander (Salamandra atra), the European pine marten (Martes martes), the Eliomys quercinus and the yellow-bellied toad (Bombina variegata). In the protected area there are also large carnivores, but not well stabilized. Brown bear (Ursus arctos) and European lynx (Lynx lynx) pass actually through these mountain-alpine habitats, even if they have not created any population yet. In the flowing waters live the Cottus gobio, Austropotamobius pallipes, the Salmo [trutta] marmoratus and the Barbus plebejus. Finally, among the lepidopterans there are the Callimorpha quadripunctaria, the Euphydryas aurinia, the Maculinea arion, the Parnassius apollo, the Parnassius mnemosyne and the Helix pomatia.