Ashkii, a North American river otter, at the National Zoo In Animals, Science & Nature, Video / 29 August 2017 Ashkii, a North American river otter, at the Smithsonian’s National Zoological Park Related posts: Fossil teeth of 15-million-year-old browsing horse found in Panama Canal excavations. Smithsonian celebrates Panama Canal expansion! With voices joined in chorus, giant otter families create a distinct sound signature American bison return to the Smithsonian’s National Zoo Tags: Smithsonian's National Zoo