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
Wildlife of Haiti hutia, Hispaniolan edible rat and imposter hutia. Marine mammal fauna reported are manatees, pygmy sperm whale, Fraser's dolphin, Atlantic spinner dolphin, Atlantic spotted dolphin, long-beaked dolphin, Pacific pilot whale and grey dolphin. There are a large number of species of bats and many are endemic to Haiti. Some of the identified bat species are: greater bulldog bat, sooty mustached bat, Waterhouse's leaf-nosed bat, Pallas's mastiff bat, Mexican funnel-eared bat, big free-tailed bat, Cuban flower bat, Cuban fig-eating bat, Parnell's mustached bat, Brazilian free-tailed bat, Jamaican fruit-eating bat and Cuban fruit-eating bat. A notable introduced mammal is the wild boar. Etang