Restoring ecosystems to a level where these ecosystems are self-sustaining is a major goal of rewilding efforts. Furthermore, rewilding is seen as a key aspect of balancing natural threats, particularly from human encroachment, while helping to restore global health, helping to mitigate climate change and potentially other long-term threats.  While rewilding is largely seen as needed, the questions that arise is what type of rewilding is needed, that is which animal and plant species, and where should efforts focus? Increasingly, research is providing answers to these questions, where GIS is increasingly part of efforts to help rewild different regions.