Antlion Pit: "Medieval Bestiaries and the Birth of Zoology"
   Article about the relationship between medieval bestiaries and modern zoology.
   http://www.antlionpit.com/aura.html

Zoo and Aquarium History
   The Bartlett Society offers historical articles discussing the Tower Menagerie, the Cincinnati Zoo, the Philadelphia Zoo, and the Washington Park Zoo.
   http://www.milwaukeezoo.org/bartlett_society.html

Zoos in Australia
   Traces the history of zoos and discussing the role of zoos in Australia today.
   http://www.cultureandrecreation.gov.au/articles/zoo/

Zoos: A Historical Perspective
   Online exhibition by the National Zoological Park Library, Smithsonian Institution.
   http://www.sil.si.edu/ondisplay/zoos/