Airedale Terrier
This pup is quite the character. They’re totally independent, intelligent and rather stubborn, plus they will keep you laughing, but you’ll always be on your toes. The Airedale Terrier is known to be a digger and a counter-surfer. They are also not great with other dogs or animals, plus they need plenty of stimulation (both physical and mental).
Australian Cattle Dog
Now these dogs have some serious endurance! They have a pretty well known reputation for stubbornness and energy to spare. They also think themselves Superman and often you’re wondering when and where they will injury themselves next.