Sources

Hoage, R. J., and William A. Deiss. New worlds, new animals: from menagerie to zoological park in the nineteenth century. Baltimore: Johns Hopkins U Press, 1996. Web. 14 Apr. 2017.

Johnson, Clelly, “Prisoners In War: Zoos and Zoo Animals During Human Conflict 1870-1947” (2015). All Thesis. Paper 2222.

Mohnhaupt, Jan. “The Zoo of the Others: Relationship and Competition between the Two Berlin Zoos during the Cold War.” Abstract. Mammalian Biology, vol. 81, no. 5, 2016, pp. 3-18.

Sax, Boria. Animals in the Third Reich: pets, scapegoats, and the Holocaust. Mount Vernon: Decalogue, 2009. Print.

Strehlow, Harro. Zoo and Aquarium History: Ancient Animal Collections to Zoological Gardens. Edited by Vernon Kisling N., Boca Raton, FL: CRC Press, 2001. Print.