This qualitative study investigated perceptions of STSE topics manifested by adults visiting four biodiversity exhibits at the Royal Ontario Museum (ROM) in Toronto, Canada. Seven visitors were observed by researchers during their visits and completed post-visit interviews. The theoretical perspective on STSE relationships expounded by Pedretti and Nazir (2011) and Steele (2014) was adopted for the analysis portion of this investigation. Results indicate that the exhibits were able to communicate their central messages on the relationship between human beings and the natural world and the relationship between science and society, as well as reveal some of the effects that these messages had on the public. However, results also support the assertion that some of the intended STSE concepts were not perceived by the participants. Moreover, we identified limitations regarding adult visitors' abilities to perceive science and technology as human activities embedded in a social, historical and moral context.