History

Antlion Pit: "Medieval Bestiaries and the Birth of Zoology" - Article about the relationship between medieval bestiaries and modern zoology.
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.
Zoos: A Historical Perspective - Online exhibition by the National Zoological Park Library, Smithsonian Institution.
Zoos in Australia - Traces the history of zoos and discussing the role of zoos in Australia today.