European green toad in Cologne Zoo | Photo: zoos.media 26. July 202120. July 2021 animal welfare, conservation, media-echo « back Cologne Zoo: Saving European green toads from drying out Published on the Facebook page of Cologne Zoo the 14.07.2021. | By: Prof. Dr. Thomas Ziegler Cologne Zoo has been able to save 1,000 victims of dehydration from a certain death. The video offers insights into how the animals are housed. » to the video with text Share this post