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Dispatches from life's blurry boundaries | Science
Carl Zimmer's Life's Edge is a departure from his previous work in that it is a book that is as much about what scientists have so far failed to understand as what they have come to understand. As its subtitle suggests, this book is about how life is defined, how life arose, and how we tell life from nonlife. These topics seem as though they would be of great concern to the field of biology—biology being, after all, the study of (“ology”) life (“bio”)—but they have rarely received much formal attention, occupying the scientific margins for hundreds of years and appearing on center stage eve...