This site is sponsored by The Bell Museum of Natural History at the University of Minnesota. An interactive game, this web site allows visitors to restore a tallgrass or shortgrass prairie by selecting the appropriate grasses, forbs, birds, mammals, reptiles and amphibians, and insects. The site explains why selections beneficial or inappropriate for the particular prairie ecosystem and provides links to read more about each species and its impact on the prairie. If the initial choice was incorrect, there is an opportunity to select again. The results of the "correct" selections are viewed via animation. Users can "see" their prairie being built and also discover how a prairie is rejuvenated. Although aimed toward elementary and middle school learners, the site could be used by educators at other levels. The uses are determined not so much by age as by knowledge level of ecosystems and the interaction of organisms within the community.