Something was wrong with the squirrels of Appalachia. It was the fall of 1968, and they appeared to be making a sudden pilgrimage: attempting improbable swims across lakes, sprinting over highways and bursting into buildings. One squirrel, while fleeing, climbed into a critical piece of infrastructure and reportedly short-circuited power to much of Clarkesville, Georgia. “The squirrel,” the wire services reported, “was also extinguished.” The highways were lined with hundreds of dead squirrels. One scientist spotted 13 squirrels swimming due north across the reservoirs of North Carolina. Nothing could make them turn around. Assuming the squirrels must be starving, concerned citizens began sending boxes of acorns and hickory nuts to the afflicted areas, and grocery stores put up signs encouraging shoppers to feed the squirrels.