Dem Zapfenguan (Oreophasis derbianus) wird zum beispiel aktiv vom Saint Louis Zoo geholfen. | Foto: KCZooFan, Lizenz: CC BY-SA 2.0 23. March 2019 history, media-echo « back Vintage photos of the Saint Louis Zoo reveal how much has changed Published on riverfronttimes.com the 11.03.2019. | By: Danny Wicentowski Modern zoos and aquariums are constantly evolving. It is when we look at old photographs, that we become aware of the change that has taken place. » more Share this post