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

Technomyrmex difficilis. Ants, like butterflies, have complete metamorphosis. They pass through egg, larva, and pupa phases on the way to maturity, all visible in this nest of white-footed ants. St. Lucia, KZN, South Africa