I've always been interested in the history of radical feminism - what happened to those women of the 1960s and '70s.
I've always been interested in wolves, since I was a child. There was a wolf enclosure in a wildlife park very close to where I was brought up; they were the main attraction.
For about two years, while researching 'The Wolf Border,' I was a complete wolf bore. I would regurgitate everything I was researching, whether people were interested or not.
You think back and you ask yourself why you became so interested in wolves. I think it was because when I was very small, growing up in a little hamlet near Shap, we would go to Lowther Wildlife Park for birthday parties. Now closed, it was only three miles from my parents' house.
They were not just interested in refinement in terms of aesthetic tastes and art collecting, but also refinement in the way that they educated the children.