Pygmy hippopotamus population that freely breeds in zoos around the world. Between 1970 and 1991 the population of pygmy hippos born in captivity more than doubled. The survival of the species in zoos is more certain than the survival of the species in the wild. In captivity, the pygmy hippo lives from 42 to 55 years, longer than in the wild. Since 1919, only 41 percent of pygmy hippos born in zoos have been male. While the common hippopotamus was known to Europeans since classical antiquity, the pygmy hippopotamus was unknown outside its range in West Africa until the 19th century. Due
Protected areas of Vietnam beach where the sea turtle nestle is located on a promontory bordering a marine park with coral reefs; 11 species of turtles, both terrestrial and marine are recorded. Global conservation concerns are serious in view of anthropological pressures in the area particularly for black-shanked douc ("Pygathrix nigripes") highest number in Vietnam, pygmy loris ("Nycticebus pygmaeus"), Asian black bear ("Ursus thibetanus"), sun bear ("U. malayanus"), large-antlered muntjac "Muntiacus vuquangensis" and Siamese fireback ("Lophura diardi"). The total Fauna recorded in the park consist of 72 mammal species and 181 bird species. Bats are also common; "Cynopterus brachyotis" is the endangered species out