I watched this documentary "Rise of the black wolf" and I have a few questions. There was a lone female with two grown pups, and when a stranger male wolf came, they became mates with the female and he "adopted" her already grown pups. He hunted for family and later he was hunting with female's sons as they were his own. My question is: does it happen in the wild? Male wolf adopting pups of a female or teaching them how to hunt, or was it only in the film and is not real? Thanks!