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Camponotus (Colobopsis) impressus is a small arboreal ant whose minor workers (right) mimic Crematogaster acrobat ants. The major workers (left) serve as living doors, plugging nest entrances with an enlarged head. Laboratory colony at the University of Central Florida, USA
Tetramorium bicarinatum foragers gather sugar-laden nectar from the underside of a leaf. Orlando, Florida, USA
Prenolepis imparis is the first ant to hold mating flights every year in temperate North America. Alates wait out the winter and emerge on the first warm spring days. This photo was taken in early March. Urbana, Illinois, USA
Prenolepis imparis is the first ant to hold mating flights every year in temperate North America. Alates wait out the winter and emerge on the first warm spring days. This photo was taken in early March. Urbana, Illinois, USA
Prenolepis imparis is the first ant to hold mating flights every year in temperate North America. Alates wait out the winter and emerge on the first warm spring days. This photo was taken in early March. Urbana, Illinois, USA
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
Oecophylla smaragdina Cairns, Queensland, Australia
Metamorphosis in the green tree ant Oecophylla smaragdina. Cairns, Queensland, 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
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
See photo in original gallery.
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all images and text © Alex Wild 2001-2013