Marie Read / Arctic terns (Sterna paradisaea), two in flight over nesting colony in field of buttercups (Ranunculus sp.), Keflavik, Iceland. Digital canvas expansion.

Ingo Arndt / Red wood ant (Formica rufa) carrying construction material to anthill (fir needles), Germany.

Marie Read / Eared grebes (Podiceps nigricollis), pair, one adult feeding one of two chicks riding on the other adult's back, Bowdoin National Wildlife Refuge, Montana, USA

Marie Read / Eared grebes (Podiceps nigricollis), pair, one adult carrying food (damselfly) for two chicks riding on the other adult's back, Bowdoin National Wildlife Refuge, Montana, USA

Marie Read / Eared grebes (Podiceps nigricollis), pair, one adult feeding chick riding on the other adult's back, Bowdoin National Wildlife Refuge, Montana, USA

Bence Mate / Leaf cutter ant (Atta sp) carrying colourful pieces of plant material, Santa Rita, Costa Rica.

Wim van den Heever / Giant anteater (Myrmecophaga tridactyla) walking with its baby on the back at twilight, Pantanal, Brazil.

Wim van den Heever / African jacana (Actophilornis africanus) male holding his youngsters safely under his wings whilst walking. Chobe National Park, Botswana.

Wim van den Heever / African jacana (Actophilornis africanus) male holding his youngsters safely under his wings whilst walking. Chobe National Park, Botswana.

Constantinos Petrinos / Gelada baboon (Theropithecus gelada) female carrying baby. Simien Mountains National Park, Ethiopia, March.

Constantinos Petrinos / Woman from the Oromo tribe transporting firewood on her back. Oromia Region, Central Ethiopia, Africa, March 2009.

Nature Production / Kuronagaari ant (Messor aciculatus) carrying dandelion seed.