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Pheidole minor workers spread-eagle a Tetramorium (aculeatum - group) forager that has strayed into their territory. Kibale forest, Uganda
Pheidole minor workers spread-eagle a Tetramorium (aculeatum - group) forager that has strayed into their territory. Kibale forest, Uganda
Pheidole minor workers spread-eagle a Tetramorium (aculeatum - group) forager that has strayed into their territory. Kibale forest, Uganda
Stigmatomma ferruginea (left) & Rhytidoponera victoriae, fighting. Diamond Creek, Victoria, Australia
The worst enemies of ants are often other ants. Here, a Rhytidoponera victoriae scout (at left) has discovered an Stigmatomma ferruginea worker and attempts to wrestle it back to her nest. If successful, she will kill the Stigmatomma and feed her to the larvae. Stigmatomma is too specialized as an underground predator to be good at general fighting, so is at a disadvantage here. Diamond Creek, Victoria, Australia
The worst enemies of ants are often other ants. Here, a Rhytidoponera victoriae scout (at left) has discovered an Stigmatomma ferruginea worker and attempts to wrestle it back to her nest. If successful, she will kill the Stigmatomma and feed her to the larvae. Stigmatomma is too specialized as an underground predator to be good at general fighting, so is at a disadvantage here. Diamond Creek, Victoria, Australia
Stigmatomma ferruginea (left) & Rhytidoponera victoriae, fighting. Diamond Creek, Victoria, Australia
The worst enemies of ants are often other ants. Here, a Rhytidoponera victoriae scout (at left) has discovered an Stigmatomma ferruginea worker and attempts to wrestle it back to her nest. If successful, she will kill the Stigmatomma and feed her to the larvae. Stigmatomma is too specialized as an underground predator to be good at general fighting, so is at a disadvantage here. Diamond Creek, Victoria, Australia
Two harvester ants (Pogonomyrmex rugosus) from adjacent nests engaging in ritual warfare, pushing in a display of force but not actually harming each other. It is thought that colonies use these mock battles to gather information about their neighbors. Knowledge about the strength of competing colonies helps ants set territorial borders without loss of life. Tucson, Arizona, USA
Pheidole minor workers spread-eagle a Tetramorium (aculeatum - group) forager that has strayed into their territory.

Kibale forest, Uganda
Pheidole minor workers spread-eagle a Tetramorium (aculeatum - group) forager that has strayed into their territory. Kibale forest, Uganda
Pheidole minor workers spread-eagle a Tetramorium (aculeatum - group) forager that has strayed into their territory.

Kibale forest, Uganda
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all images and text © Alex Wild 2001-2013