The Aktiengesellschaft Cologne Zoological Garden is the zoo of Cologne, Germany. Being the third oldest zoo in Germany, it features over 10,000 animals of more than 850 species on more than 20 hectares. The internationally renowned zoo with an attached aquarium and invertebrate exhibit is active in preservational breeding of animals that are in danger of becoming extinct. In addition, in-the-wild conservation efforts and research focussing on animals of Madagascar, Wallacea, and Vietnam are actively promoted and supported via cooperation with Cologne University and local projects, such as in the case of Przewalski's horses.
