Martin Dohrn / Army ant soldier portrait - jaws used for defence and suture purposes.{Eciton burchelli} Santa Rosa NP, Guanacaste, Costa Rica, Central America

Martin Dohrn / Army ant bivouac made entirely from body mass of migrating ants {Eciton burchelli} Santa Rosa NP, Guanacaste, Costa Rica, Central America

PREMAPHOTOS / Army ants forage for prey (Eciton burchelli) Trinidad

Solvin Zankl / Army ant (Eciton burchellii) head of a soldier with sickle-shaped mandibles. The soldier caste defends the others. Specimen photographed using digital focus stacking

Solvin Zankl / Army ant (Eciton burchellii) soldier head. Specimen photographed using digital focus stacking

Konrad Wothe / Army Ant (Eciton burchelli) with larva, probably prey, submajor and workers, rainforest of La Selva, Costa Rica

Konrad Wothe / Army Ants (Eciton burchelli) with the tail of a scorpion, major, submajor and workers, rainforest of La Selva, Costa Rica

Konrad Wothe / Army Ants, submajor and worker (Eciton burchellii) La Selva rainforest, Costa Rica

Phil Savoie / Army ants {Eciton burchelli} moving larvae, South America

PREMAPHOTOS / Army ant (Eciton burchelli) workers co-operating to carry a large centipede prey back to their bivouac, in rainforest, Trinidad

Martin Dohrn / Army ant bivouac made entirely from body mass of migrating ants {Eciton burchelli} Santa Rosa NP, Guanacaste, Costa Rica, Central America

Martin Dohrn / Army ants dragging centipede prey back to nest {Eciton burchelli} Santa Rosa NP, Guanacaste, Costa Rica, Central America

Martin Dohrn / Army ants dragging centipede prey back to nest {Eciton burchelli} Santa Rosa NP, Guanacaste, Costa Rica, Central America

PREMAPHOTOS / Army ants bivouac under tree (Eciton burchelli) Trinidad

PREMAPHOTOS / Army ants form bridge on forest floor (Eciton burchelli) Trinidad

ANDREW MURRAY / Army ants {Eciton burchelli} bivouac between butress roots of forest tree. Panama