Field trips, like the one pictured here, were among the many ways the Chicago Academy of Sciences actively included the Chicago community in its scientific work and promoted the appreciation of nature. Students who accompanied Academy naturalist Henry Cowles to the Indiana Dunes gathered data that eventually resulted in his theory of ecological succession—the idea that a habitat naturally progresses (e.g. from pond to wetland to shrubland to forest) as certain species dominate resources and then die off.

In addition to offering field trips, the Academy’s innovative teacher training programs helped make Chicago’s teachers some of the most scientifically literate educators around, while lectures, films, and nature walks were popular with the broader community. For local naturalist groups, the Academy provided a home with space to meet and experts to interact with.