The Neolithic period of northern Arabia is known in part from the monumental stone structures and accompanying cave art, as well as the remains of hearths indicating temporary settlement. But there is much we do not know about the character and timing of settlement before the spread of animal pastoralism (c. 6000 BC).Researchers have recently discovered new, enigmatic carvings that shed light on this ancient history.Five panels totaling nine large life-size specimens have so far been identified. The camels have frequently had other camels carved over them or had their features and proportions improved, which suggests the site was used...