This is the world's smartest dog, with an IQ equivalent to that of an eight-year-old. Basically a smart dog that can learn in five commands. Border collies are very friendly with friends and noticeably reserved with strangers, and are friendly with children. He is also an excellent collie who is willing to learn and is satisfied with it. And thrive on human friendship. Suitable for outdoor living, need a lot of exercise, border collie is not only the best pet dog in life, companion dog, but also a good home guard dog in the family.