giant otter, pteronura brasiliensis, portrait in the river water level, rio negro, pantanal, brazil. wildlife scene from nature. a

amazon america animal aquatic behaviour black branch brasiliensis brazil brown carnivore closeup cute eating ecology ecuador endangered evening feet fish forest from funny fur giant head jungle level life light mammal mouth mustelidae nature negro nose orange otter pantanal peru portrait predator pteronura rain rio river scene small south swim tropical venezuela water weasel wet whiskers wild wildlife