Yes, of course. Yes. Yes. I think in Germany, this is still the fundamental book on zoo biology. Can you talk about, Heger did a quote which you quote in your book about and what it means to you. It says, zoos are by no means only zoological matters, but cultural in the broadest sense, the animal and indeed a wild animal that is so endangered in our time, plays a much greater role in our culture, history, art and literature than most people realize. Exactly. And if We wanted to eliminate them, it would be a sad day. And how much desolate would be if they were taken away.