Nick Sousanis, an artist, writer and adjunct faculty member at Wayne State University , says Detroit is experiencing a revival of nature over the last three decades. "As people are sprawling outward, it's great to see positive things with wildlife and nature happening here," Sousanis says. Detroit, thanks to three decades of strict environmental laws and a declining population, has experienced a resurgence of predators such as falcons, hawks and eagles - and unusual trees, plants and flowers.