Unfortunately, there is hardly an official training for zoo biologists. Usually, zoo directors have the training of zoology and/or vet. But that’s usually not enough for zoo biology. So in Zurich, and later in Frankfurt, we offered short courses of one to two weeks for zoologists or vets, training in zoo biology. And there, of course, we showed how important Heini Hediger’s work was. But it’s of course a very short training, two weeks, to understand the whole zoo biology. And as far as I know, there is no university offering real good courses in zoo biology.