A column of Eciton rapax, the largest Eciton species, marches across the Amazonian forest floor. Jatun Sacha reserve, Napo, Ecuador

Eciton burchellii set up bivouacs by linking their bodies together. Here, one worker serves as an anchor for several others. Maquipucuna reserve, Pichincha, Ecuador

Eciton hamatum workers return from a successful raid bearing captured ant brood. Jatun Sacha reserve, Napo, Ecuador