Podomyrma gratiosa fighting with Crematogaster. Naracoorte, South Australia
Brute force versus chemical weaponry: the heavily armored Podomyrma gratiosa dispatches small Crematogaster with her powerful mandibles, but the smaller ants use strong defensive chemicals in return, coating their adversary with a thick acrid foam exuded from their abdomens. Naracoorte, South Australia
Pogonomyrmex maricopa and Novomessor albisetosa workers, fighting. Resources are scarce in the desert and competition among ants is fierce, leading to frequent conflicts. Green Valley, Arizona, USA
