The Institute has offered employment and support to hundreds of zoologists with a deep interest in the study of animals, their lives and their natural history. Some of our fellows work at the Institute only temporarily, others have spent almost their whole working lives here. At various times, the Institute has employed a number of outstanding Czech scientists who otherwise have worked mainly at Czech universities, for instancece Jiří Gaisler, Zdeněk Veselovský. Some fellows have emigrated abroad and gone on to become leading scientists in their adopted countries (Milan Klíma, Antonín Velek, Jiří Lukáš). The Institute’s past can be looked back upon with nostalgia and pride, the remarkable achievements of our predecessors setting the Institute in motion toward excellent research and wide appreciation.