Cat Ba tiger gecko in Prof. Ziegler's office terrarium at Cologne Zoo | Photo: Thomas Ziegler 16. June 202113. June 2021 conservation, media-echo, research « back Cologne Zoo: 7 new species discovered Published on the Facebook page of Cologne Zoo the 22.05.2021. The conservation work at Cologne Zoo continues to be fruitful: in 2021 alone, seven new species were described and named. » more Share this post