Mark MacEwen / Broad snouted caiman (Caiman latirostris) baby in mothers mouth being carried from nest, Sante Fe, Argentina, February

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,...

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 a Leaf cutter ant (Atta) carrying a leaf along a branch, Orellana Province, Ecuador. (non-ex)

Morley Read / Slow motion clip of a Leaf cutter ant (Atta) carrying a leaf along a branch, Orellana Province, Ecuador. (non-ex)

Andy Rouse / African lion (Panthera leo) female carrying young cub, Masai Mara, Kenya, Africa. Highly commended in the African Wildlife Category of the Nature's Best Photography Competition 2019.

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

Matthew Maran / Red fox (Vulpes vulpes) carrying a large dead Brown rat (Rattus norvegicus) in an urban garden, North London, UK. August.

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)

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

David Pattyn / Alpine marmot (Marmota marmota) carrying grass and other nesting material across snow to its nest while another one is on the lookout, Gran Paradiso National Park, Aosta Valley, Italy, April

Alan Murphy/ BIA / Barn Owl (Tyto alba) flying with rodent prey, Texas

Thomas Hinsche/ BIA / Black-crowned Night Heron (Nycticorax nycticorax) with fish prey, Hungary

Andres M. Dominguez/ BIA / Common Tern (Sterna hirundo) flying with fish prey, Danube Delta, Romania

Alan Murphy/ BIA / Bald Eagle (Haliaeetus leucocephalus) fishing, Alaska

Gary Bell/ Oceanwide / Intermediate Cardinalfish (Cheilodipterus intermedius) male incubating eggs in mouth, Great Barrier Reef, Australia

Gary Bell/ Oceanwide / Intermediate Cardinalfish (Cheilodipterus intermedius) male incubating eggs in mouth, Great Barrier Reef, Australia

Gary Bell/ Oceanwide / Intermediate Cardinalfish (Cheilodipterus intermedius) male incubating eggs in mouth, Great Barrier Reef, Australia

Jed Weingarten / Wild Wonders of China / Tibetan macaque (Macaca thibetana) carrying young baby, Tangjiahe Nature Reserve, Sichuan Province, China

Jabruson Motion / Conservation workers carrying a sedated Sumatran orangutan (Pongo abelii) towards vehicles and a transport box, part of a relocation programme, Sei Serdang, Prima, Batang Serangan, Langkat, North Suma...

Graeme Guy/ BIA / Chestnut-headed Bee-eater (Merops leschenaulti) trio with insect prey, Penang, Malaysia

Sean Crane / Grizzly Bear (Ursus arctos horribilis) with Coho Salmon (Oncorhynchus kisutch) prey, Lake Clark National Park, Alaska

Juergen & Christine Sohns / Swamp Wallaby (Wallabia bicolor) mother and joey, Mount Lofty, South Australia, Australia

Juergen & Christine Sohns / Eastern Grey Kangaroo (Macropus giganteus) mother with joey jumping, Maloney Beach, New South Wales, Australia

Remi Masson / Eurasian beaver (Castor fiber) carrying branches back to lodge, dropping them when alarmed. River Rhone, Rhone-Alpes, France, June.

John Chan / Honey bees (Apis mellifera) gathering at the entrance of their nest in a hollow log, with some returning workers carrying pollen baskets, Bolsa Chica Ecological Reserve, California, USA, October.

Yva Momatiuk & John Eastcott / Atlantic Puffin (Fratercula arctica) with fish prey, Borgarfjordur Eystri, Iceland

Chien Lee / Pygmy Anteater (Cyclopes didactylus) mother and young, Esmeraldas, Ecuador

Chien Lee / Spike-browed Frog (Sphenophryne cornuta) father transporting froglets, Digul River, West Papua, Indonesia

Chien Lee / Spike-browed Frog (Sphenophryne cornuta) father transporting froglets, Digul River, West Papua, Indonesia

Mark Raycroft / Cocker Spaniel (Canis familiaris) puppy playing, North America

Vincent Grafhorst / Dromedary (Camelus dromedarius) caravan transporting salt across salt flat, Lake Asale, Danakil Depression, Ethiopia

Alan Murphy/ BIA / Northern Caracara (Caracara cheriway) chasing sub-adult with prey, Texas

Alfred Trunk/ BIA / Common Merganser (Mergus merganser) mother carrying chick, Upper Austria, Austria

Mario Suarez Porras/ BIA / Atlantic Puffin (Fratercula arctica) with fish prey, Farne Islands, England, United Kingdom

Anup Shah / Eastern Chimpanzee (Pan troglodytes schweinfurthii) fifteen year old mother carrying her twenty-one month old daughter, Gombe National Park, Tanzania

Paul Bertner / Leafcutter Ant (Atta sp) group harvesting leaf, Yasuni National Park, Ecuador

Paul Bertner / Giant Crab Spider (Sparassidae) mother with spiderlings, Udzungwa Mountains National Park, Tanzania

Michael Quinton / Northern Flicker (Colaptes auratus) carrying fecal sac from nest cavity in forest, Alaska

Michael Quinton / Steller's Sea Lion (Eumetopias jubatus) with Pink Salmon (Oncorhynchus gorbuscha) prey, Alaska

Konrad Wothe / Common Merganser (Mergus merganser) mother with chicks, Upper Bavaria, Germany

Brian Bevan / Close-up of a group of Wood ants (Formica rufa) carrying a dead insect back to their nest, Bedfordshire, England, UK, August.

Brian Bevan / Close-up of a group of Wood ants (Formica rufa) carrying a dead Common wasp (Vespula vulgaris) back to their nest, Bedfordshire, England, UK, August.

Konrad Wothe / Leafcutter ants (Atta cephalotes) carrying leaves along a trail, Panguana Reserve, Huanuco Province, Peru.

Konrad Wothe / Leafcutter ants (Atta cephalotes) carrying leaves along a trail up a tree trunk, Panguana Reserve, Huanuco Province, Peru.

Konrad Wothe / Leafcutter ants (Atta cephalotes) carrying leaves and filaments along a trail, Panguana Reserve, Huanuco Province, Peru.

Konrad Wothe / Army ants (Eciton burcellii) carrying eggs on a trail in a rainforest, Panguana Reserve, Huanuco Province, Peru.

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

Anup Shah / Bornean Orangutan (Pongo pygmaeus wurmbii) female 'Princess' walking along a trail carrying her daughter 'Putri' aged 2 years on her back. Camp Leakey, Tanjung Puting National Park, Central Kalimantan...

Francois Savigny / Tiger male carrying Chital deer kill, Bandhavgarh NP, Madhya Pradesh, India

Ingo Arndt / Purple Heron (Ardea purpurea) pair courting and building nest in reeds, Germany

Ron Bielefeld/ BIA / Belted Kingfisher (Megaceryle alcyon) male flying with fish prey, Florida

Nate Chappell/ BIA / Rufescent Tiger-Heron (Tigrisoma lineatum) with fish prey, Corrientes, Argentina

Debapratim Saha/ BIA / Red-whiskered Bulbul (Pycnonotus jocosus) feeding on seed, West Bengal, India

Alain Ghignone/ BIA / Great Crested Grebe (Podiceps cristatus) parent carrying chicks, Piedmont, Italy

Alain Ghignone/ BIA / Great Crested Grebe (Podiceps cristatus) pair feeding chick, Piedmont, Italy

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) mother and three month old young, Isla Escudo de Veraguas, Panama

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) mother and three month old young, Isla Escudo de Veraguas, Panama

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) mother and four month old young, Isla Escudo de Veraguas, Panama

ZSSD / Hawaiian Crow (Corvus hawaiiensis) using stick tool to reach food, native to Hawaii

ZSSD / Hawaiian Crow (Corvus hawaiiensis) using stick tool to reach food, native to Hawaii

Alan Murphy/ BIA / Carolina Wren (Thryothorus ludovicianus) with insect prey, Texas

Brais Seara Fernandez/ BIA / Atlantic Puffin (Fratercula arctica) with sandeel prey, Farne Islands, United Kingdom

Sebastian Kennerknecht / Snowy Plover (Charadrius nivosus) biologist, Ben Pearl, picking up chick from mud flat in salt pond, Eden Landing Ecological Reserve, Union City, Bay Area, California

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

Alex Hyde / Leaf-cutter ant (Atta cephalotes) carrying pieces of leaf that they have harvested back to their underground fungus garden in their nest, Osa Peninsula, Costa Rica

Alex Hyde / Leaf-cutter ants (Atta cephalotes) carrying pieces of leaf that they have harvested back to their underground fungus garden in their nest, Osa Peninsula, Costa Rica. Photographed in mobile field studi...

Alex Hyde / Leaf-cutter ants (Atta cephalotes) carrying pieces of leaf that they have harvested back to their underground fungus garden in their nest, Osa Peninsula, Costa Rica. Photographed in mobile field studi...

Suzi Eszterhas / Sea Otter (Enhydra lutris) mother with three day old newborn pup, Monterey Bay, California

Suzi Eszterhas / Sea Otter (Enhydra lutris) mother and three day old newborn pup, Monterey Bay, California

Suzi Eszterhas / Sea Otter (Enhydra lutris) mother and three day old newborn pup, Monterey Bay, California

Suzi Eszterhas / Sea Otter (Enhydra lutris) mother and six day old newborn pup, Monterey Bay, California

Andy Rouse / African Lion (Panthera leo) female carrying young cub. Masai Mara, Kenya, Africa. August.

Bence Mate / Leaf cutter ants (Atta sp) carrying piece of leaf, Costa Rica.

Bence Mate / European roller (Coracias garrulus) carrying snake prey, Kiskunsagi National Park, Pusztaszer, Hungary. July.

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

Bence Mate / Leaf cutter ants (Atta sp) carrying pieces of fern, reflected in water, Costa Rica.

Bence Mate / Leaf cutter ants (Atta sp) carrying plant matter, Costa Rica.

Bence Mate / Leaf cutter ants (Atta sp) carrying colourful plant matter, reflected in water, Laguna del Lagarto, Santa Rita, Costa Rica

Bence Mate / Leaf cutter ants (Atta sp) silhouetted carrying plant matter, Laguna del Lagarto, Santa Rita, Costa Rica

Bence Mate / Leaf cutter ants (Atta sp) carrying colourful plant matter, reflected in water, Laguna del Lagarto, Santa Rita, Costa Rica

Bence Mate / Leaf cutter ants (Atta sp) carrying plant matter, Costa Rica.

Bence Mate / Leaf cutter ant (Atta sp) carrying pink flower segment, Santa Rita, Costa Rica.

Bence Mate / Leaf cutter ants (Atta sp) carrying colourful plant matter, reflected in water, Costa Rica.

Chien Lee / Lesser Short-nosed Fruit Bat (Cynopterus brachyotis) carrying fig, Kuching, Sarawak, Borneo, Malaysia

Chien Lee / Ring-tailed Lemur (Lemur catta) mother carrying young, Berenty Private Reserve, Madagascar

Chien Lee / Ring-tailed Lemur (Lemur catta) mother carrying young, Berenty Private Reserve, Madagascar

Chien Lee / Verreaux's Sifaka (Propithecus verreauxi) mother and young, Berenty Private Reserve, Madagascar

Matthias Breiter / Grizzly Bear (Ursus arctos horribilis) with Pink Salmon (Oncorhynchus gorbuscha) prey, Anan Creek, Tongass National Forest, Alaska

Matthias Breiter / Black Bear (Ursus americanus) with Pink Salmon (Oncorhynchus gorbuscha) prey, Anan Creek, Tongass National Forest, Alaska

Matthias Breiter / Black Bear (Ursus americanus) with Pink Salmon (Oncorhynchus gorbuscha) prey, Anan Creek, Tongass National Forest, Alaska