Pugs were once used by the military – Now I know it’s tough to imagine these little guys in battle, but they were actually pretty good at tracking things. During the 17th century it wasn’t uncommon for them to be on guard duty or used as tracking dogs to find people and/or other animals. A Pack of Pugs is called a Grumble – If you ever see a group of Pugs running together, you better move out the way because no one stands a chance against the Grumble Bundle. Their wrinkly faces need to be cleaned regularly – Although those wrinkly faces are really adorable, they do require a bit of maintenance. You have to clean between the wrinkles regularly to prevent infection and bacterial growth. Source: PugTips