Veshet

The Veshet were a large rodent form of life that lived on the planet Dathomir. They were found to be relatives of the Womp rats of Tatooine which may have snuck on ships and were transported to their new home. The Veshet had a keen sense of smell making them excellent trackers that would hunt prey across long distances. Another interesting fact was that they could easily be trained that would attack on command or did so on smelling a certain scent on their target. This made them popular assassination tools during the days of the Old Republic.