In the first story, "Mowgli's Brothers", Father Wolf investigates a noise outside the cave den where his mate Raksha (Mother Wolf) is suckling her cubs. Instead of the tiger Shere Khan, he is startled to see a naked human baby emerging from the bush. At Raksha's request he brings the "man's cub" to her and she decides to adopt him and name him Mowgli.
Father Wolf plays very little part in the stories after this. He dies at about the same time as Raksha, when Mowgli is about 14 years old, and Mowgli mourns them and seals their bodies in their cave.