Deep within the frozen ground of Devon Island in Canada’s High Arctic, researchers found the nearly complete skeleton of a rhinoceros, Epiaceratherium itjilik, that lived there around 23 million years ago. The discovery, made by a team from the Canadian Museum of Nature, reveals that rhinos once roamed much farther north than anyone imagined. The fossils were found inside Haughton Crater, a 23-kilometer-wide impact site now locked in ice and silence. Millions of years ago, this same place held forests, lakes, and life. The team named the new species Epiaceratherium itjilik, or “frosty rhino,” combining Latin and Inuktitut to reflect...