Orangutan Surya at Rostock Zoo | Photo: Joachim Kloock, License: CC BY-SA 3.0 DE 4. January 202229. December 2021 education, media-echo « back VdZ: Why we keep great apes Published on vdz-zoos.org in September 2021. The German Association of Zoological Gardens (VdZ) explains in the contribution why the members of the zoo association keep great apes and why it is so important to do so. » to the full publication Share this post