Phong Nha - Ke Bang National Park is home to 154 mammal species, notably the tiger and gaur, banteng largest species in the world, 303 species of birds, including 83 species in the Red Data Book of Vietnam and 110 species located in the red Book of the world; 100 reptiles; 51 classes of amphibians; 259 species of butterflies; 215 species of fish. In 1996, here comes new fish species discovered in Vietnam. Primate primates 10, accounting for 50% of all species of primates in Vietnam, 7 species in the Red Data Book of Vietnam, Ha Tinh langur especially, Saola, bring. Phong Nha - Ke Bang is judged to be the most diverse natural systems in all national parks and biosphere reserves in the world countries.
Phong Nha - Ke Bang is a community where the richest primate Southeast Asia. In 2002, German scientist Thomas Zegler have discovered a new species of lizard ear Tripidophrus Nogei called Karst mountains in the area he said. This lizard was posted on the newspaper 114 (2) issued in July 2007 by the journal Revue de Zoologie Suise. Scientists have named this species Lizards Phong Nha - Ke Bang (scientific name: Cyrtodactylus phongnhakebangensis). German scientists have developed a referral parks National Park Phong Nha-Ke Bang in Köln Zoo to showcase the biodiversity of the national park, here also discovered a new type of solid chassis tomorrow. Over a period of study, the scientists from Germany, Russia and Vietnam have discovered 10 new species added in this national park, which includes five snakes, 5 species of geckos, lizards, many species of this new discovery is endemic animals here.
Scientists Vietnam and the Russian scientists of the Institute of Wildlife Sankt-Peterburg, German scientists have discovered Cologne Zoo in the park more than 100 new species of fish fauna. Ten fish unprecedented in Vietnam has been discovered in the park.
In the 3 species in Phong Nha - Ke Bang is written to the Vietnam Red Book, there were two species of eels. That eel, flowers (Anguilla marmorota) and eel, Ebony (Anguilla bicolo).
Union for Conservation of Wildlife World (FFI) has conducted a survey and had reported that the Phong Nha - Ke Bang has 4 species classified as endangered on a global scale, it is Ha Tinh langurs, black monkeys, langurs and iridescent white cheeked gibbon.