The Border Collie is THE smartest dog, believe it or not! Most known for herding animals, the Border Collie has a lot of energy and intelligence. Because of this, it is extremely important to give them an "occupation" to give them a sense of purpose. If you don't, well, then they'll use that energy to overturn everything in your house while you're gone. They have an intense connection with humans, however, they need someone who can match their energy. They need the stimulation, mind and body, to be the dog they are supposed to be. With the right person, Border Collies are well behaved, easily trained, and a great companion.