Eciton burchellii army ant soldier. The hooked mandibles are used to protect army ant colonies against vertebrate predators.

Maquipucuna Reserve, Pichincha, Ecuador
Eciton burchellii army ant soldier. The hooked mandibles are used to protect army ant colonies against vertebrate predators.

Maquipucuna Reserve, Pichincha, Ecuador
An Eciton burchellii soldier brandishes her hooked mandibles. These unwieldy weapons are designed to grab vertebrate predators and deter them from stealing the army ants' own catch.

Jatun Sacha reserve, Napo, Ecuador
An Eciton hamatum soldier uses her ice-tong mandibles to latch on to the photographer's skin.  This gives her the leverage to use her stinger (at the read end of the animal) and makes her very difficult to remove.

Jatun Sacha reserve, Napo, Ecuador
Eciton burchellii soldier.

Jatun Sacha reserve, Napo, Ecuador
Eciton burchellii

Jatun Sacha reserve, Napo, Ecuador
Eciton burchellii army ant soldier. The hooked mandibles are used to protect army ant colonies against vertebrate predators.

Maquipucuna Reserve, Pichincha, Ecuador
Acromyrmex echinatior 

Panama; Laboratory colony at the University of Wisconsin at Madison
Acromyrmex echinatior 

Panama; Laboratory colony at the University of Wisconsin at Madison
Eciton burchellii army ant soldier. The hooked mandibles are used to protect army ant colonies against vertebrate predators.

Maquipucuna Reserve, Pichincha, Ecuador
Eciton burchellii army ant soldier. The hooked mandibles are used to protect army ant colonies against vertebrate predators.

Maquipucuna Reserve, Pichincha, Ecuador
Eciton burchellii army ant soldier. The hooked mandibles are used to protect army ant colonies against vertebrate predators.

Maquipucuna Reserve, Pichincha, Ecuador
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all images and text © Alex Wild 2001-2013