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 ringtail possum Pygmy ringtail possum The pygmy ringtail possum ("Pseudochirulus mayeri") is a species of marsupial in the family Pseudocheiridae. It is found in West Papua, Indonesia and Papua New Guinea. The "Pseudochirulus mayeri" live in montane forest regions. They are “widespread along the Central cordillera” and live at elevations between above sea level.” Pygmy ringtails are herbivores or “arboreal folivores” that eat pollen, lichen, fungus and “epiphytic moss." "P. mayeri" also eat the bark of trees, which provides them with calcium and potassium. They have “large incisor” teeth which help with “clipping forage from plants” and have “selenodont molars” that help