The bodies have pieces of metal connected to them and some have eggs inside of them. They were probably very intelligent. There's a legend in the region of Ant like people told by the indians - One of the most intriguing Hopi legends involves the Ant People, who were crucial to the survival of the Hopi—not just once but twice. The so-called “First World” (or world-age) was apparently destroyed by fire—possibly some sort of volcanism, asteroid strike, or coronal mass ejection from the sun. The Second World was destroyed by ice—Ice Age glaciers or a pole shift. During these two global cataclysms, the virtuous members of the Hopi tribe were guided by an odd-shaped cloud during the day and a moving star at night that led them to the sky god named Sotuknang, who finally took them to the Ant People—in Hopi, Anu Sinom . The Ant People then escorted the Hopi into subterranean caves where they found refuge and sustenance. There's also cave paintings/markings and other ancient works of creatures like ant's with 3 fingers and toes in the region.