Dem Zapfenguan (Oreophasis derbianus) wird zum beispiel aktiv vom Saint Louis Zoo geholfen. | Foto: KCZooFan, Lizenz: CC BY-SA 2.0

Vintage photos of the Saint Louis Zoo reveal how much has changed

Published on 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.

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