Inside the brood nest of a colony of rock ants. California, USA.
Temnothorax rugatulus. Ants in this laboratory nest are individually marked with dabs of paint to help researchers at the University of Arizona track their activities. As Temnothorax are hardy ants that adapt well to the laboratory, they are frequently used for studies of ant behavior. Tucson, Arizona, USA
Little Ochetellus ants are a common but often overlooked element of the Australian ant fauna. These workers tend to their larvae in the nest. Nhill, Victoria, Australia