Pogonomyrmex barbatus nest. Sycamore Canyon, Arizona, USA
Western harvester ants (Pogonomyrmex occidentalis) make distinctive mound nests on the desert floor. Hallelujah Junction, California, USA
A film crew for a National Geographic documentary sets up a robotic camera on a nest of red harvester ants, Pogonomyrmex barbatus. Sycamore Canyon, Arizona, USA
