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
Pygmy treeshrew Pygmy treeshrew The pygmy treeshrew ("Tupaia minor") is a treeshrew species within the family Tupaiidae. It is native to Thailand, Malaysia and Indonesia. The generic name is derived from the Malay word "tupai" meaning squirrel or small animals that resemble squirrels. "T.minor" is distributed in peninsular Thailand, peninsular Malaysia, Sumatra, the Lingga Archipelago (Indonesia), Borneo, offshore islands of Laut (Indonesia), and Banggi and Balambangan (Malaysia). From the "Catalogue of Mammal Skins in Sarawak Museum, Kuching, Sarawak", more than 30 individuals of "T. minor" have been collected from 1891 to 1991. The specimens were mostly caught in Mt Penrisen, Mt Dulit,