A conservation scientist explores the increasing intersection between humans and wild animals Fang and claw have jumped the white picket fence as encounters with cougars in Chicago, alligators in Florida, and bears virtually everywhere have become increasingly commonplace. As cities and suburbs sprawl, and conservation efforts enable wildlife populations to recover, large wild animals are encroaching on human turf. These creatures might be thrilling...

"The Accidental Ecosystem tells the story of how cities across the United States went from having little wildlife to filling, dramatically and unexpectedly, with wild creatures. Today, many of these cities have more large and charismatic wild animals living in them than at any time in at least the past 150 years. Why have so many cities--the most artificial and human-dominated of all Earth's ecosystems--grown rich with wildlife, even as wildlife has...