Abstract
From 1908 to 1922, William Beebe, the curator of birds at the Bronx Zoo, tried unsuccessfully to bring tropical birds known as hoatzin to the zoological park in the Bronx run by the New York Zoological Society. Beebe was committed to bringing hoatzin to the zoo because he thought they could reveal scientific truths about ecology and evolution to him and the visiting public. While contemporary scholarship about zoo science in the United States has focused on how environmental conservation shaped the scientific practices of zoos at the turn to the 20th century, Beebe's efforts to bring hoatzin to the Bronx shows that evolutionary theory and ecology were central issues at the institution. Beebe wanted to use zoo displays to conduct research into the relationships between organisms and environments in order to investigate how certain animal behaviors, such as flight, developed. Beebe's employers, Madison Grant and Henry Osborn, were less interested in Beebe's experimentation with zoo exhibits, and more invested in using the zoo as a place to disseminate evolutionary ideas they already understood as scientific truths about heredity, racial hierarchies, and eugenics. Whereas Beebe saw his scientific practice as dependent on ecological connections, Grant and Osborn stressed a narrative of purity and separation (of species and race) that governed the conservation projects and scientific focus of the Zoological Society, as well as the presentation of animals on zoo grounds. Ultimately, Grant and Osborn's evolutionary concerns and their vision of a hierarchical natural world dictated the scientific direction of the Bronx Zoo in a way that prevented the institution from becoming a site for ecological research.