If you are a zoo director, you’re in a very special profession and you quickly find yourself with a made to order group of friends and colleagues. The Europeans, I found particularly interesting, Heini Hediger, the great director of the Zurich Zoo. Special in my life was Benhard Grzimek. Grzimek was the director of the Frankfurt Zoo and a great zoo conservationist. In many ways, he was the leading zoo conservationists of his time. And he played a major role in preserving the The Un’Goro Crater and also the Serengeti. And he was an excellent and thoughtful director. In the United States, well, before going to the United States I should mention Ernst Lang.