Pteronura brasiliensis (Zimmermann, 1780), the giant otter, is the largest freshwater otter. Found in South America, it inhabits slow-moving rivers and creeks and feeds predominantly on fish. Extinct in the southern portions of its former range, P. brasiliensis is listed as "Endangered" by the International Union for Conservation of Nature and Natural Resources. Threats to P. brasiliensis include habitat destruction, illegal hunting, and disease.
giant otter, mustelid, South America
© 2017 by American Society of Mammalogists.
Noonan, Paula; Prout, Siobhan; and Hayssen, Virginia, "Pteronura brasiliensis (Carnivora: Mustelidae)" (2017). Biological Sciences: Faculty Publications, Smith College, Northampton, MA.