The forests of Quảng Bình, particularly in Phong Nha-Kẻ Bàng, are home to at least 98 families, 256 genera and 381 species of vertebrates. 66 animal species are listed in Vietnam's Red Data Book and 23 other species in the World Red Book of Endangered Species. In 2005, a new species of gecko ("Lygosoma boehmeiwas") was discovered here by a group of Vietnamese biologists together with biologists working for the park, Cologne Zoo in Germany and the Saint Petersburg Wild Zoology Institute in Russia.