Lone Wolf by Jodi Picoult

From Library Journal: "Luke Warren has spent decades learning the inner workings of wolf packs. Yet his relationship with his own family is strained. Divorced from his wife and estranged from his son, Edward, Luke remains close to his daughter, Cara. When the two are involved in a car accident that leaves Luke in a coma, Edward must return home to make important medical decisions regarding life-sustaining measures. With facts that aren't always clear and emotional baggage getting in the way, Cara and Edward find themselves on opposite sides regarding what is best for their father. Picoult once again has written a compelling story involving current issues and family drama with a unique twist. The inclusion of Luke's relationship with wolves adds an element of depth, and details like these are why readers find Picoult's books impossible to put down. Her many fans won't be disappointed."