7. January 20197. January 2019 conservation, media-echo Opel-Zoo in Kronberg: The hamster saviours Published on fr.de the 05.09.2018. | By: Torsten Weigelt The Opel-Zoo in Kronberg takes active part in the conservation programme of the Environmental Minister, Priska Hinz (Greens), to ensure the survival of characteristic species of the meadows. » more