A couple of things were mentioned in the podcast that need to be cleared up, if only for the understanding of Paul, Jason, and Doug:
1) The wolves do not have to imprint on other wolves/animals. They imprint on anyone. And, once they imprint, you could say it's a way of claiming ownership. But, the idea Stephenie Meyer sets up in the book is that a wolf will be a protector for the person they imprint on. When that person gets old enough, they can choose to continue their life with the wolf or be with someone else.
2) In the books, there is at least one girl werewolf. Her name is Leah.
3) Renesmee= Renee (Bella's mom's name) + Esmee (Edward's "mom's" name)