If you’re looking for an energetic, adventurous, brave, agile, strong and courageous working dog to join your family and possibly your farm, then check out the Australian cattle dog. This breed is a herding breed or working dog developed in the 19th century in Australia. The breed is primarily used to herd cattle across long distances and rough terrain. If you need a dog to work your farm, guard your farm, or just serve as an active canine companion for outdoor adventures then this could be the breed for you. The Australian cattle dog is independent yet obedient and responsive to consistent training. They love being outdoors and on the move. They are an alert and curious breed as well. The average cattle dog can grow to be between 17 and 20 inches and weigh 30 to 50 pounds. Your trustworthy vet Ellicott City MD can tell you the breed has a lifespan of 12 to 16 years.