Mary Ellen Hannibal offers a gripping and informative look at the founding of bioconservation, the scientists and controversies behind environmental science, and the ambitious, necessary extension of theoretical knowledge into practical application with the formation of connected wildlife corridors from Canada to Mexico. Giving equal time to anecdotes and interviews, Hannibal supports her engaging and swift narrative with hard facts. This book is far more engrossing and dramatic than the title suggests; it goes beyond the politics of wildlife protection to present a real history of America’s habitat, the animals within it, the people who study them, and the disparate motivations behind responsible conservation. Deep dives into the ecology of species both native—beavers, wolves, jaguar, and pika—and not native—cows—reveal the interdependence of humans and their wilder counterparts in the woods and plains. A thoroughly satisfying gem, readers will find themselves in the company of America’s best minds (Jared Diamond, Michael Soule) and heroes (Sherri Tippie), as Hannibal travels through landscapes chronicling the efforts underway to keep North America habitable for the plants and animals that first lived here and the people who now call it home. This is what scientific writing should be: fascinating and true. – Publishers Weekly