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Crematogaster acrobat ants use their stingers in defense, but they don't pierce the integument of their opponents. Rather, the stinger serves as a brush for smearing defensive chemicals on their adversaries. Here, a worker defends a food bait against an intruding Pheidole. Kibale forest, Uganda
Crematogaster acrobat ants use their stingers in defense, but they don't pierce the integument of their opponents. Rather, the stinger serves as a brush for smearing defensive chemicals on their adversaries. Here, a worker defends a food bait against an intruding Pheidole. Kibale forest, Uganda
Tetramorium pavement ants fight to determine the territorial boundary between two colonies. These fights are a regular feature of the biology of this species, often conspicuously staged on sidewalks and other places where this species occurs. Clinton Lake State Recreation Area, Illinois, USA
Tetramorium pavement ants fight to determine the territorial boundary between two colonies. These fights are a regular feature of the biology of this species, often conspicuously staged on sidewalks and other places where this species occurs. Clinton Lake State Recreation Area, Illinois, USA
Myrmecia pilosula jack-jumper ants from neighboring nests, engaged in battle. Tower Hill, Victoria, Australia
Odontomachus chelifer. Ants from different colonies don't normally tolerate each other. Here, a trap-jaw ant dispatches an intruder from a neighboring nest. Aragua, Venezuela
Nomamyrmex army ants are among the few animals that successfully attack leafcutter ant nests. The leafcutters are not without their defenses. Here two Atta workers attack and kill a Nomamyrmex esenbeckii scout, preventing the army ants from discovering the leafcutter's trail. Gamboa, Panama
An unfortunate Opsithopsis respiciens strobe ant has been discovered in the treetop territory of Oecophylla smaragdina weaver ants and is summarily executed. Cape Tribulation, Queensland, Australia
An unfortunate Opsithopsis respiciens strobe ant has been discovered in the treetop territory of Oecophylla smaragdina weaver ants and is summarily executed. Cape Tribulation, Queensland, Australia
Crematogaster acrobat ants use their stingers in defense, but they don't pierce the integument of their opponents. Rather, the stinger serves as a brush for smearing defensive chemicals on their adversaries. Here, a worker defends a food bait against an intruding Pheidole.

Kibale forest, Uganda
Crematogaster acrobat ants use their stingers in defense, but they don't pierce the integument of their opponents. Rather, the stinger serves as a brush for smearing defensive chemicals on their adversaries. Here, a worker defends a food bait against an intruding Pheidole. Kibale forest, Uganda
Crematogaster acrobat ants use their stingers in defense, but they don't pierce the integument of their opponents. Rather, the stinger serves as a brush for smearing defensive chemicals on their adversaries. Here, a worker defends a food bait against an intruding Pheidole.

Kibale forest, Uganda
See photo in original gallery.
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all images and text © Alex Wild 2001-2013