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
Pogonomyrmex californicus, the California harvester ant, standing guard at the nest entrance. Mojave National Preserve, California, USA
Western harvester ants (Pogonomyrmex occidentalis) make distinctive mound nests on the desert floor. Hallelujah Junction, California, USA