The first zoo educator in Europe was hired in Frankfurt in the late ’50s. And there was a special policy. We didn’t have a school room because the thinking was people are staying in this cool room all the day. And in a zoo, the whole zoo is this cool room. And it’s much better to bring the children directly to the animal and to show directly the animal’s behavior or other characteristics. So there was no school room but we have a zoo education officer. And that was one of my first tasks in Frankfurt, to appoint the second zoo educator only. It was the first one worked for about 35 years.