Isaac was, in many ways, a typical mouse. Running full bore, he could cover twelve feet in a single second, a whopping eight miles per hour. He could scamper across the thinnest string, leap five times his height and climb a slippery wall without a second thought. And, like all mice, Isaac was smart, very smart, because, as everyone knows, mouse genes are eighty-five percent human. The remaining fifteen percent are the reason mice are superior to...