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
Cloud-forest pygmy owl cloud-forest pygmy owl populations. Unfortunately, the cloud-forest pygmy owl benefits little from existing conservation units, with no records from large protected areas despite the existence of apparently suitable habitat. Cloud-forest pygmy owl The cloud-forest pygmy owl ("Glaucidium nubicola") is a short, muscular, small-sized species of owl found throughout the Andes of western Colombia and north-western Ecuador, being confined to cloud forests between 900–2000 m a.s.l. Below this altitudinal range the Central American pygmy owl ("Glaucidium griseiceps") occurs; above it, the Andean pygmy owl ("Glaucidium jardinii") occurs. Its epithet "nubicola" is Latin for “cloud-inhabiting”, because this species is restricted to very