Ben Goldfarb is an award-winning writer whose work has appeared in the Atlantic, National Geographic, the New York Times, and many other publications. His writing has also been anthologized in The Best American Science and Nature Writing. He is a recipient of fellowships from the Alicia Patterson Foundation and the Whiting Foundation.

Below, Ben shares five key insights from his new book, Crossings: How Road Ecology Is Shaping the Future of Our Planet. Listen to the audio version—read by Ben himself—in the Next Big Idea App.