First successful breeding of a Vietnamese crocodile newt in Cologne Zoo | Photo: T. Ziegler 13. July 202012. July 2020 conservation, media-echo « back Frogs & Friends: Diversity in Vietnam Published on frogs-friends.org the 12.07.2016. | By: Susann Knakowske A report on the commitment of Cologne Zoo to the protection of the important biodiversity hotspot that is Vietnam. » to the full report Share this post