In the book Crossings: How Road Ecology Is Shaping the Future of Our Planet, journalist Ben Goldfarb details how roads have transformed our world. On this week’s show, Ben shares insights from his reporting on the science of studying how roads interact with animals and ecosystems. He recounts tales of tallying roadkill, scooping up stranded frogs, and visiting the roadkill capital of the world. Along with discussing the problems wrought by roads, Ben shares how efforts to help animals, such as wildlife crossings, have fared. And we talk about what roads reveal about people and our societies.