Heini Hediger

Heini Hediger (30 November 1908 – 29 August 1992) was a Swiss biologist noted for work in proxemics in animal behavior and is known as the "father of zoo biology". Hediger was formerly the director of Tierpark Dählhölzli (1938–1943), Zoo Basel (1944–1953) and Zürich Zoo (1954–1973). Provided by Wikipedia