If you read the stories of The First Jungle Book, you remember how, attaching the skin of Sher Khan to the Council Rock, Mowgli told the surviving wolves of the Zion pack that he would hunt one from now on, and how his brothers - four wolves - announced that they would hunt with him. But its hard to change life in one minute, especially in the jungle.
Then he told Mother and Father Wolves everything that they could understand from his adventures among people, and when the boy made the morning sun play on the blade of his knife, the very one with which he skinned from Sher Khan, they agreed that their son learned something.