Rio Abiseo contains seven life zones that protect a great diversity of species of flora and fauna. An initial floral inventory of the higher elevations of the park has identified more than 1,000 species, including 174 ferns (17 percent of all fern species reported in Peru), 72 orchids and two tree species in danger of extinction.
A recent inventory of Rio Abiseo's fauna registered 300 species of vertebrate mammals, amphibians, reptiles and fish, among which were 18 species considered endangered at the national level and 12 species new to science!