In this Nature video, Joe Ralf uses his Border collie herding dogs in the Lake District of the United Kingdom to herd his flock of sheep. The dogs can follow the shepherd's command to herd in sheep from over a half mile away. Because they spend so much time together, shepherds and dogs form a close social bond. Part of the herding dogs skill is innate (under genetic control or instinctive) and part is learned behavior (what you teach the dog to do). People have used herding dogs for over 9,000 years.
Learn more about the Nature film "Dogs That Changed the World."