In In the Throes, author Mathias Freese imagines a prehistoric creature called a Gruff, who by dint of sheer intelligence and will breaks through the constraints of pure instinct and finds the fraught gift of awareness. And by ‘awareness’ we mean the full array of reflection and consciousness that we humans function with day to day. It’s an amazing trick for the animal, and after the initial thrill of discovery, the Gruff finds other new thoughts, which you only get when you have the gift of consciousness,...