Andrew Parkinson / 2020VISION / Marsh harrier (Circus aeruginosus) three sub-adult siblings squabbling in flight in the last rays of evening sunlight, Norfolk, UK, August

Fiona Rogers / Proboscis Monkey (Nasalis larvatus) sub-mature male sitting in a tree. Bako National Park, Sarawak, Borneo, Malaysia, March.

Fiona Rogers / Proboscis Monkey (Nasalis larvatus) sub-mature male sitting in a tree. Bako National Park, Sarawak, Borneo, Malaysia, March.

Anup Shah / Sub-mature male Proboscis Monkey (Nasalis larvatus) swinging from a liana. Bako National Park, Sarawak, Borneo, Malaysia, April 2010.

Ingo Arndt / Nordenskjold Glacier with Allardyce Range showing medial moraine and glacial foot, South Georgia Island

Anup Shah / Bornean Orangutan (Pongo pygmaeus wurmbii) sub-adult male 'Oman' sitting on a clump of vegetation in the river feeding. Camp Bulu, Lamandau Nature Reserve, Central Kalimantan, Borneo, Indonesia. July...

Anup Shah / Bornean Orangutan (Pongo pygmaeus wurmbii) sub-adult male 'Pan' yawning - head portrait. Camp Leakey, Tanjung Puting National Park, Central Kalimantan, Borneo, Indonesia. June 2010. Rehabilitated and...

Anup Shah / Bornean Orangutan (Pongo pygmaeus wurmbii) sub-adult male 'Oman' sitting on a clump of vegetation in the river feeding - wide angle perspective. Camp Bulu, Lamandau Nature Reserve, Central Kalimantan,...

Anup Shah / African lion (Panthera leo) three sub adults approaching remote camera with curiosity, Masai Mara National Reserve, Kenya. February

Frederique Olivier / Royal Penguin (Eudyptes schlegeli) colony, adults incubating eggs at nests, Hurd Point, Macquarie Island, Southern Atlantic, Australian Antarctica, November 2007

Frederique Olivier / Southern elephant seal (Mirounga leonina) portrait with seaweed, Macquarie Island, Southern Atlantic, Australian Antarctica, November

Yva Momatiuk & John Eastcott / Alaska Moose (Alces alces gigas) sub-adult bull with antlers shedding velvet feeding in tundra pond, Denali National Park, Alaska

Anup Shah / African elephant (Loxodonta africana) sub-adults and calves playing, Masai Mara National Reserve, Kenya. March

Anup Shah / African elephant calf (Loxodonta africana)a ged 3-6 months walking with a sub-adult, Masai Mara National Reserve, Kenya. March

Donald M. Jones / Canada Goose (Branta canadensis) resting during sub-zero weather on Missouri River, central Montana

Steven David Miller / Subtropical rainforest growing in a creek gully, while at higher levels a mixed forest begins. Fraser Island, Queensland, Australia

Peter Cairns / Golden eagle (Aquila chrysaetos) sub-adult male (two years) in flight over Cairngorms National Park, Scotland, UK, captive

Peter Cairns / Golden eagle (Aquila chrysaetos) sub-adult male (two years) flying down to take prey, Cairngorms National Park, Scotland, UK, captive

Peter Cairns / Golden eagle (Aquila chrysaetos) sub-adult female in flight, Cairngorms National Park, Scotland, UK, captive

Michael Pitts / Bull Elephant seal (Mirounga sp) portrait with penguin walking along beach, St Andrews Bay, South Georgia

Michael Pitts / Southern giant petrel (Macronectes giganteus) head covered in blood feeding on carcass of an Elephant seal pup, with a penguin colony in the distance, St Andrews Bay, South Georgia

Chris Gomersall / Golden eagle (Aquila chrysaetos) sub-adult in winter snow shower, captive bird, Speyside, Scotland, February

Fiona Rogers / Gelada baboon (Theropithecus gelada) sub-mature male showing aggression by lip flipping, Simien Mountains National Park, Ethiopia, November

Steven Kazlowski / Polar bear (Ursus maritimus) two years, plays with a spring cub on newly formed pack ice along the Arctic coast, Arctic National Wildlife Refuge, Beaufort Sea, Alaska, October 2008

Konrad Wothe / Chinstrap Penguin (Pygoscelis antarctica) hopping over ice, South Sandwich Islands, Antarctica

Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) pups, fat and docile weaners stay together for company and reassurance, St. Andrews Bay, South Georgia Island

Yva Momatiuk & John Eastcott / Southern Elephant Seal (Mirounga leonina) bull roaring at intruder on beach during breeding season, Gold Harbour, South Georgia Island

Andrew Parkinson / Bengal tiger (Panthera tigris tigris) head portrait of a 19-month sub-adult relaxing in dappled light. Bandhavgarh National Park, Madhya Pradesh, India.

Jan Vermeer / Chinstrap Penguin (Pygoscelis antarctica) pair courting, Southern Thule, South Sandwich Islands, Antarctica

Tui De Roy / Campbell Albatross (Thalassarche impavida) immature flying, North Cape, Campbell Island, sub-Antarctica New Zealand

Tui De Roy / Campbell Albatross (Thalassarche impavida) parent guarding chick, North Cape, Campbell Island, sub-Antarctica New Zealand

Carol Walker / Pair of King Penguins (Aptenodytes patagonicus) on Gold Beach, South Georgia Island, Sub Antarctica.

Thomas Mangelsen / King Penguin (Aptenodytes patagonicus) group of downy chicks, Fortuna Bay, South Georgia

Suzi Eszterhas / Black-browed Albatross (Thalassarche melanophrys) flying, endangered, Steeple Jason, Falkland Islands

Yva Momatiuk & John Eastcott / Massive iceberg floating, smashing into waves and melting rapidly due to gobal warming and rising temperatures of sea and air, near Cumberland Bay, South Georgia Island, Southern Ocean, Antarctic Conv...

Yva Momatiuk & John Eastcott / Gentoo Penguin (Pygoscelis papua) chick begging parent for food, on beach, fall, Gold Harbour, South Georgia Island, Southern Ocean, Antarctic Convergence

Yva Momatiuk & John Eastcott / Antarctic Fur Seal (Arctocephalus gazella) young male on beach, entangled in green fishing net, deadly marine debris floating in all oceans, Gold Harbour, South Georgia Island, Southern Ocean, Antarct...

Yva Momatiuk & John Eastcott / Gentoo Penguin (Pygoscelis papua) flapping wings and walking on beach in surf, evening, Cooper Bay, South Georgia Island, Southern Ocean, Antarctic Convergence

Yva Momatiuk & John Eastcott / King Penguin (Aptenodytes patagonicus) group walking, pointing long bills on gravel beach, fall, Gold Harbour, South Georgia, Southern Ocean, Antarctic Convergence

Yva Momatiuk & John Eastcott / King Penguin (Aptenodytes patagonicus) walking in shallow surf near shore in evening, fall, Gold Harbour, South Georgia Island, Southern Ocean, Antarctic Convergence

Yva Momatiuk & John Eastcott / Macaroni Penguin (Eudyptes chrysolophus) adults walking and one jumping on boulder, along rocky river bank near sea, Cumberland Bay, Southern Ocean, Antarctic Convergance, South Georgia Island

John Waters / Sub-adult Kestrel {Falco tinnunculus} hovering in flight over farmland, captive, Somerset, UK.

John Waters / Sub-adult Kestrel {Falco tinnunculus} hovering in flight, captive, Somerset, UK.

John Waters / Sub-adult Kestrel {Falco tinnunculus} hovering in flight, captive, Somerset, UK.

Solvin Zankl / Honey dripping from nest of Giant honey bee (Apis dorsata binghami) that has been cut from tree before being squeezed to harvest wild honey, North Pamona sub-district, Sulawesi, Indonesia

Rod Williams / Aardwolf {Proteles cristatus} sub-adult female. Captive.

Eric Baccega / Two King penguins sleeping, rear view, Kerguelen Is, Sub-antarctic {Aptenodytes patagoni}

Ian McCarthy / King penguin chicks in creche {Aptenodytes patagoni} Marion Island, sub-antarctica (Taken on location for BBC Planet Earth Shallow Seas 2005).

Flip de Nooyer / Black-browed Albatross (Thalassarche melanophrys) chicks on tower nests, South Georgia Island

Gerry Ellis / Antarctic Fur Seal (Arctocephalus gazella), South Georgia Island

Konrad Wothe / Royal Penguin (Eudyptes schlegeli) pair, Macquarie Island, Australia

Gerry Ellis / Gentoo Penguin (Pygoscelis papua) parent and chicks begging for food on nest, South Georgia Island

Gerry Ellis / African Elephant (Loxodonta africana) walking towards camera, sub-Sahara, east Africa

Tui De Roy / Campbell Albatross (Thalassarche impavida) portrait of two month old chick awaiting parent's feeding, Bull Rock, North Cape Colony, Campbell Island, New Zealand

Tui De Roy / Campbell Albatross (Thalassarche impavida) coming in to land, Bull Rock Cape Colony, Campbell Island, New Zealand

Tui De Roy / Buller's Albatross (Thalassarche bulleri) pair on storm-lashed western cliffs looking toward south promonitory, Snares Islands, endemic to New Zealand's southern Islands, New Zealand

Tui De Roy / King Penguin (Aptenodytes patagonicus) group swimming underwater offshore from breeding colony, Macquarie Island, sub-Antarctica Australia

Tui De Roy / Royal Penguin (Eudyptes schlegeli) group walking to colony past Macquarie Island Cabbage (Stilbocarpa polaris) both endemic to Macquarie Island, Australia

Tui De Roy / White-capped Albatross (Thalassarche steadi) pair courting, Southwest Cape, Auckland Island, New Zealand

Tui De Roy / Antipodean Albatross (Diomedea antipodensis) courtship display often pirouetting with outstretched wings, Adams Island, Auckland's Group, New Zealand

Tui De Roy / White-capped Albatross (Thalassarche steadi) couple courting, Southwest Cape, Auckland Island, New Zealand

Tui De Roy / King Penguin (Aptenodytes patagonicus) group underwater, offshore from breeding colony, Macquarie Island, sub-Antarctica Australia

Tui De Roy / King Penguin (Aptenodytes patagonicus) group swimming underwater offshore from breeding colony, Macquarie Island, sub-Antarctica Australia

Tui De Roy / King Penguin (Aptenodytes patagonicus) group swimming underwater offshore from breeding colony, Macquarie Island, sub-Antarctica Australia

Tui De Roy / Adelie Penguin (Pygoscelis adeliae) group on iceberg, Laurie Island, South Orkney Islands, Antarctica

Mitsuaki Iwago / King Penguin (Aptenodytes patagonicus) adult attends to its single egg balanced on its feet, South Georgia Island

Mitsuaki Iwago / King Penguin (Aptenodytes patagonicus) covered in oil, South Georgia Island

Tui De Roy / Hooker's Sea Lion (Phocarctos hookeri) cow bonding with young pup, Enderby Island, Auckland Islands, New Zealand

Tui De Roy / Campbell Albatross (Thalassarche impavida) pair at Bull Rock, North Cape Colony, Campbell Island, New Zealand

Tui De Roy / Campbell Albatross (Thalassarche impavida) coming in to land, Bull Rock, North Cape Colony, Campbell Island, New Zealand

Hugh Pearson / Snares island penguin, dispute {Eudyptes robustus} Snares Island, New Zealand

Pete Oxford / King Penguin (Aptenodytes patagoni) colony with chicks. S.Georgia Salisbury plain.

Pete Oxford / Guayaquil / Buffon's macaw {Ara ambigua}, Western Ecuador, South America Sub-species of Great Green Macaw.

Doug Wechsler / Sub tropical montane forest at 1,500m. Western. Andes, Ecuador

David Tipling / King penguin colony {Aptenodytes patagoni} adults and chicks, St Andrews Bay, South Georgia

David Tipling / King penguin colony {Aptenodytes patagoni} adults and chicks, South Georgia

Xi Zhinong / Yunnan snub nosed monkey in tree, Yunan, China {Rhinopithecus bieti} Sub species of Chinese snub-nosed monkey, now considered a separate species. Endangered

Xi Zhinong / Yunnan snub nosed monkey in tree Yunan, China {Rhinopithecus bieti} Sub-species of Chinese snub-nosed monkey, now considered a separate species. Endangered

Xi Zhinong / Yunnan snub nosed monkey {Rhinopithecus bieti} Yunnan, China Sub species of Chinese snub-nosed monkey , now considered a separate species. Endangered

Fiona Rogers / Celebes / Black crested macaque (Macaca nigra) sub-adult male head portrait, Tangkoko National Park, Sulawesi, Indonesia.

Fiona Rogers / Celebes / Black crested macaque (Macaca nigra) sub-adult male head and shoulders portrait, Tangkoko National Park, Sulawesi, Indonesia.

Fiona Rogers / Celebes / Black crested macaque (Macaca nigra) sub-adult male head portrait, Tangkoko National Park, Sulawesi, Indonesia.

Fiona Rogers / Celebes / Black crested macaque (Macaca nigra) sub-adult male feeding on a coconut, Tangkoko National Park, Sulawesi, Indonesia.

Fiona Rogers / Celebes / Black crested macaque (Macaca nigra) sub-adult male resting on back, Tangkoko National Park, Sulawesi, Indonesia.

Fiona Rogers / Celebes / Black crested macaque (Macaca nigra) sub-adult male trying to break into bamboo to feed on ant eggs from a nest, Tangkoko National Park, Sulawesi, Indonesia.

Fiona Rogers / Celebes / Black crested macaque (Macaca nigra) sub-adult male head portrait, Tangkoko National Park, Sulawesi, Indonesia.

Fiona Rogers / Celebes / Black crested macaque (Macaca nigra) sub-adult male head portrait, Tangkoko National Park, Sulawesi, Indonesia.

Fiona Rogers / Celebes / Black crested macaque (Macaca nigra) sub-adult male head and shoulders portrait, Tangkoko National Park, Sulawesi, Indonesia.

Anup Shah / Celebes / Black crested macaque (Macaca nigra) sub-adult male sitting against a tree trunk, Tangkoko National Park, Sulawesi, Indonesia.

Anup Shah / Celebes / Black crested macaque (Macaca nigra) sub-adult male sitting against a tree trunk, wide angle perspective, Tangkoko National Park, Sulawesi, Indonesia.

Anup Shah / Celebes / Black crested macaque (Macaca nigra) sub-adult hanging from a branch, Tangkoko National Park, Sulawesi, Indonesia.

Anup Shah / Celebes / Black crested macaque (Macaca nigra) sub-adult male jumping into the river, Tangkoko National Park, Sulawesi, Indonesia.

Anup Shah / Celebes / Black crested macaque (Macaca nigra) sub-adult male jumping into the river, Tangkoko National Park, Sulawesi, Indonesia.

Anup Shah / Celebes / Black crested macaque (Macaca nigra) sub-adult male sitting on the forest floor, Tangkoko National Park, Sulawesi, Indonesia.

Anup Shah / Celebes / Black crested macaque (Macaca nigra) sub-adult male sitting on the forest floor feeding on coconut, Tangkoko National Park, Sulawesi, Indonesia.