Pygmy hippopotamus Pygmy hippopotamus The pygmy hippopotamus ("Choeropsis liberiensis" or "Hexaprotodon liberiensis") is a small hippopotamid which is native to the forests and swamps of West Africa, primarily in Liberia, with small populations in Sierra Leone, Guinea, and Ivory Coast. The pygmy hippo is reclusive and nocturnal. It is one of only two extant species in the family Hippopotamidae, the other being its much larger relative, the common hippopotamus ("Hippopotamus amphibius") or Nile hippopotamus. The pygmy hippopotamus displays many terrestrial adaptations, but like the hippo, it is semiaquatic and relies on water to keep its skin moist and its body temperature cool.
Pygmy madtom Pygmy madtom The pygmy madtom ("Noturus stanauli") is a species of fish in the family Ictaluridae endemic to the United States, in only two known regions of Tennessee. Madtoms are the smallest members of the catfish family. Members of the genus "Noturus" can be distinguished by their small size, unusually long adipose fin, and rounded caudal fin. Most specimens have been collected over shallow, fine gravel shoals with moderate to swift flow, usually near the stream bank. The pygmy madtom has an extremely limited distribution, appearing only in samples taken from the Duck River, in Humphreys and Hickman Counties, Tennessee;