Pygmy hippopotamus unusual secretion as common hippos, that gives a pinkish tinge to their bodies, and is sometimes described as "blood sweat" though the secretion is neither sweat nor blood. This substance, hipposudoric acid, is believed to have antiseptic and sunscreening properties. The skin of hippos dries out quickly and cracks, which is why both species spend so much time in water. The skeleton of "C. liberiensis" is more gracile than that of the common hippopotamus, meaning their bones are proportionally thinner. The common hippo's spine is parallel with the ground; the pygmy hippo's back slopes forward, a likely adaptation to pass
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