How old would Bernhard Grzimek be today?

Bernhard Klemens Maria Hoffbauer Pius Grzimek was a German zoo director, zoologist, book author, editor, and animal conservationist in postwar West Germany. During the Third Reich, he served as a veterinarian in the army. After World War II, he popularized the study of animals and an interest in wildlife in Germany, becoming the public face of Frankfurt Zoo, producing a popular German magazine called Das Tier, giving radio talks and appearing on a popular television series Ein Platz für Tiere [A place for animals] in the 1950s and 60s, apart from producing a multi-volume encyclopedia on animals. He wrote another book Kein Platz für wilde Tiere [No Place for Wild Animals] (1954) which was later produced as a documentary on the problems of African wildlife. Along with his son Michael Grzimek he produced a documentary Serengeti Shall Not Die which won an Oscar. He was involved in popularizing African wildlife and was involved in wildlife conservation in Africa, particularly in the Serengeti. He served as a government advisor on conservation and campaigned against the use of animal furs for fashion. He sometimes wrote under the pseudonym "Clemens Hoffbauer".