The kind of ideas that have become natural to many male human beings in thinking of females—ideas of protection, fidelity, romantic love and so on—are, of course, unknown to rabbits, although rabbits certainly do form exclusive attachments much more frequently than most people realize. However, they are not romantic and it came naturally to Hazel and Holly to consider the two Nuthanger does simply as breeding stock for the warren. This was what they had risked their lives for.