A Field Ant (Formicidae: Formica subsericea, from Iowa) carrying a deceased nest-mate. Ants will move their dead far away from the colony as a preventive 'public health' measure.
Two Pavement Ants (genus Tetramorium) square off in the midst of a springtime battle for territory between neighboring colonies in Iowa.
An Eastern Black Carpenter Ant, Camponotus pennsylvanicus, tends to a colony of aphids (Hemiptera: Aphididae) in Iowa. She is tapping the aphids with her antennae to trigger the secretion of honeydew, a sweet liquid that ants readily exploit as an energy source.