Why is it that most of us are able to track down the tiny sketch of a bespectacled cartoon man wearing a striped shirt and a funny hat—in the midst of a busy scene filled with distractions and look-alikes? Finding "Waldo" might be a tad tamer than hunting down a prehistoric dinner. But we can do both because we're excellent visual hunters, and a new study demonstrates that the human brain uses its inputs and neural networks to find "search objects" at a near-optimal level. · Go to Human brains are optimally tuned for the visual hunt →