The distinctive nest entrance of the nocturnal honeypot ant Myrmecocystus mexicanus. Huachuca mountains, Arizona, USA
Myrmicaria natalensis keeps well-maintained trails among nests. Kibale forest, Uganda
A colony of green tree ants has woven several leaves together to guard their arboreal herd of honeydew-producing scale insects. The great number of guard ants is present because the photographer breathed on the nest. Cairns, Queensland, Australia.
