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 parrot are stiff and form projections at the end of the tail. The cere is prominent. The external appearance of the adult males and adult females differ to varying extents in different species. Juveniles are duller. The genus was defined by French naturalist René-Primevère Lesson in 1831. The name "Micropsitta" is derived from the Greek "mikros" meaning small and "psitta" for parrot. The pygmy parrots consist of six species and several subspecies: Genus: "Micropsitta" (pygmy parrots) Pygmy parrot Pygmy parrots are the smallest members of the parrot order. The six species of pygmy parrots are all in the genus Micropsitta, which