For more than four decades, Gus Mills moved through the wild landscapes of southern Africa on the animals' schedule — awake before dawn, still when stillness was required — and in doing so, he quietly dismantled the myths that had long distorted how science and the public understood predators. He died on July 13 at eighty, leaving behind a body of work that asked a harder question than how many animals remain: whether the living systems those animals inhabit are truly whole. His life was a sustained argument that patience is not merely a virtue in field biology, but its very method.