Leos are not known to be lazy and relaxed. This spunky sign likes to move fast, is competitive, and is filled with passion. The Border Collie is the only dog that can keep up. This dog is energetic, social, and fiery, needing a lot of exercise. A great outdoor dog, considering how fiercely they protect and herd cattle, Border Collies are task-oriented and like to be challenged. Just like a Leo, they want accomplish their goals so they can relax at the end of the day. If a Leo is looking for an engaged and affectionate dog, look no further than a Border Collie.