This book was about a wolf and I think a mother animal I can't remember what kind. But I believe the wolf eats the mothers babies and she cuts open the wolfs belly and the babies are still alive and she replaces them with rocks and sews the wolfs belly back up. Any body remember this one?

The wolf and the seven little goats (http://www.grimmstories.com/en/grimm_fairy-tales/the_wolf_and_the_seven_little_goats)