Bence Mate / Leaf cutter ant (Atta sp) female worker carrying leaf to nest, with a smaller 'minor' ant riding. The minor's job is to protect her sister from parasitic flies. Costa Rica, December. Highly Commended,...

Kim Taylor / Bachacs / Leafcutter ants {Atta cephalotes} carrying sections of Cocoa leaf bearing 'riders' thought to ward off parasitic flies which would otherwise lay their eggs on the pieces of leaf. Trinidad, W...

Morley Read / Leaf cutter ants (Atta sp) carrying leaves and pieces of yellow flowers along a branch, Amazon rainforest, Orellana Province, Ecuador. (non-ex)

Morley Read / Leaf cutter ants (Atta sp) carrying leaves and pieces of yellow flowers along a branch, Amazon rainforest, Orellana Province, Ecuador. (non-ex)

Morley Read / Leaf cutter ants (Atta sp) carrying leaves and pieces of yellow flowers along a branch, Amazon rainforest, Orellana Province, Ecuador. (non-ex)

Morley Read / Column of Leaf cutter ants (Atta sp) carrying leaves over the rainforest floor to their nest, Amazon rainforest, Orellana Province, Ecuador. (non-ex)

Morley Read / Slow motion clip of Army ants (Eciton rapax) on the rainforest floor, Orellana Province, Ecuador. (non-ex)

Morley Read / Slow motion clip of Leafcutter ants (Atta) carrying pieces of leaves back to their nest, Amazon rainforest, Napo Province, Ecuador. (non-ex)

Piotr Naskrecki / Termite (Macrotermes mossambicus) winged individual on pile of wings shed by other termites, with winged male Carpenter ants (Camponotus). Gorongosa National Park, Mozambique. Highly commended in the...

Morley Read / Column of Leaf cutter ants (Atta) carrying cut pieces of leaves along the forest floor towards therr nest, Orellana Province, Ecuador, 2018. (non-ex)

Emanuele Biggi / Peruvian Tarantula (Pamphobeteus sp.) and Humming Frog (Chiasmocleis royi) together, Los Amigos Biological Station, Madre de Dios, Amazonia, Peru. These species have a commensal relationship. The tara...

Emanuele Biggi / Peruvian Tarantula (Pamphobeteus sp.) adult, walking over Humming Frog (Chiasmocleis royi) without preying on it. Los Amigos Biological Station, Madre de Dios, Amazonia, Peru. These species have a com...