The Pachon Navarro is a Spanish hunting dog has the unusual feature of a split or double nose. It is believed that this unusual nose gives this dog extra sensitivity to smells a primary reason it was chosen as a hunting dog. In two photographs of what has been called the Double-nosed Andean tiger hound which were widely published in 2006 and 2007 there are two Andean dogs that are believed to be remotely descended from the Pachon Navarro and who bear an unusual double nose.