Prof. Zdeněk Veselovský (August 26, 1928 – November 24, 2006) was one of the most important Czech zoologists of the 20th century, founder of Czech ethology, very successful director of the Prague Zoo (1959-1988) and the president of the International Union of Directors of Zoological Gardens (1971-1975) (renamed in 2000 to World Association of Zoos and Aquariums). Under his leadership, the Prague zoo reached some successes in the area of breeding and scientific research.