The messy thing that we like to call civilization is actually more like a coral reef, crawling with critters that camp out in our architectural nooks and crannies and make a pretty good living on our scraps. Those creatures, and natural spaces like parks, can have a profound influence on our lives and our urban culture, too. Join Grist as we explore the wild landscapes of our cities.
(Photograph by Kārlis Dambrāns)