Man saves dying wolf and his cubs - years later the animal returns the favor. This story is actually said to have happened in Alaska a few years ago.
This is reported by a YouTube video that has already had 19 million views. It is becoming more and more common for wolves to approach civilization. Some of them kill sheep and calves. This year a wolf even stole lamps. Man finds she-wolf who fell into a trap. Years later, the animal thanks him for it and saves his life.