Andrew Peacock / White Rhinoceros (Ceratotherium simum) mother and calf in grassland, Ol Pejeta Conservancy, Kenya

Andrew Peacock / Acacia (Acacia sp) trees at sunset, northern Kenya

Andrew Peacock / Taiga and coastal snow-covered mountains in autumn, Glacier Bay National Park, Alaska

Andrew Peacock / Taiga and snow-covered mountains in autumn, Glacier Bay National Park, Alaska

Andrew Peacock / Common Hartebeest (Alcelaphus buselaphus) herd at sunrise, Ol Pejeta Conservancy, Kenya

Andrew Peacock / White Rhinoceros (Ceratotherium simum) mother and calf in grassland, Ol Pejeta Conservancy, Kenya

Andrew Peacock / White Rhinoceros (Ceratotherium simum) pair, Ol Pejeta Conservancy, Kenya

Andrew Peacock / White Rhinoceros (Ceratotherium simum), Ol Pejeta Conservancy, Kenya

Andrew Peacock / Grevy's Zebra (Equus grevyi) and Burchell's Zebra (Equus burchellii) hybrid, Ol Pejeta Conservancy, Kenya

Andrew Peacock / African Elephant (Loxodonta africana) sub-adult males play-fighting, Ewaso Ng'iro River, Samburu National Park, Kenya

Andrew Peacock / African Elephant (Loxodonta africana) sub-adult males play-fighting, Ewaso Ng'iro River, Samburu National Park, Kenya

Andrew Peacock / African Elephant (Loxodonta africana) sub-adult male, Ewaso Ng'iro River, Samburu National Park, Kenya

Andrew Peacock / African Elephant (Loxodonta africana) sub-adult male crossing river, Ewaso Ng'iro River, Samburu National Park, Kenya

Andrew Peacock / Acacia (Acacia sp) tree at Sunrise, El Barta, Kenya

Andrew Peacock / Grevy's Zebra (Equus grevyi) and Burchell's Zebra (Equus burchellii) herd, El Barta, Kenya

Andrew Peacock / Sunrays over cloud at sunset, northern Kenya

Andrew Peacock / Red-bark Acacia (Vachellia reficiens) trees growing in overgrazed land, Westgate Community Conservancy, Naibelibeli Plains, Kenya

Andrew Peacock / Steller's Sea Lion (Eumetopias jubatus) male with females, Inian Islands, Icy Strait, Alaska

Andrew Peacock / Ice, LeConte Bay, southeast Alaska

Andrew Peacock / Iceberg along coast, LeConte Bay, southeast Alaska

Andrew Peacock / Coastal mountains at sunset, Glacier Bay National Park, Alaska

Andrew Peacock / Steller's Sea Lion (Eumetopias jubatus) group hauled out on rocks, Inian Islands, Icy Strait, Alaska

Andrew Peacock / Steller's Sea Lion (Eumetopias jubatus) male surfacing, Inian Islands, Icy Strait, Alaska

Andrew Peacock / Sea Otter (Enhydra lutris), Inian Islands, Icy Strait, Alaska

Andrew Peacock / Taiga and snow-covered mountains in autumn, Glacier Bay National Park, Alaska

Andrew Peacock / Taiga and coastal snow-covered mountains in autumn, Glacier Bay National Park, Alaska

Andrew Peacock / Icelandic Horse (Equus caballus) pair, Seljalandsdalur, Sudavik, Iceland

Andrew Peacock / Atlantic Puffin (Fratercula arctica), Aedey Island, Iceland

Andrew Peacock / Atlantic Puffin (Fratercula arctica), Aedey Island, Iceland

Andrew Peacock / Atlantic Puffin (Fratercula arctica) with fish prey, Vigur Island, Iceland

Andrew Peacock / Atlantic Puffin (Fratercula arctica) with fish prey, Vigur Island, Iceland

Andrew Peacock / Atlantic Puffin (Fratercula arctica) pair in rainfall, Grimsey Island, Iceland

Andrew Peacock / Northern Fulmar (Fulmarus glacialis) flying over ocean, Iceland

Andrew Peacock / Gentoo Penguin (Pygoscelis papua) juvenile in snowstorm, Brown Bluff, Antarctic Peninsula, Antarctica

Andrew Peacock / Iceberg in ocean, South Orkney Islands, Antarctica

Andrew Peacock / Lenticular cloud formations over coastline, Barff Point, Cumberland East Bay, South Georgia Island

Andrew Peacock / Rainbow along coastline, St Andrew's Bay, South Georgia Island

Andrew Peacock / King Penguin (Aptenodytes patagonicus), Salisbury Plain, South Georgia Island

Andrew Peacock / Wandering Albatross (Diomedea exulans) flying, Southern Ocean

Andrew Peacock / Gentoo Penguin (Pygoscelis papua) group on beach, Grave Cove, Falkland Islands

Andrew Peacock / Gentoo Penguin (Pygoscelis papua) looking at reflection on beach, Grave Cove, Falkland Islands

Andrew Peacock / Zebra (Equus quagga) herd in savanna, Ol Pejeta Conservancy, Kenya

Andrew Peacock / Common Hartebeest (Alcelaphus buselaphus) herd at sunrise, Ol Pejeta Conservancy, Kenya

Andrew Peacock / Common Hartebeest (Alcelaphus buselaphus) herd at sunrise, Ol Pejeta Conservancy, Kenya

Andrew Peacock / Spotted Hyena (Crocuta crocuta) mother with pups, Ol Pejeta Conservancy, Kenya

Andrew Peacock / Spotted Hyena (Crocuta crocuta), Ol Pejeta Conservancy, Kenya

Andrew Peacock / Zebra (Equus quagga) herd, Ol Pejeta Conservancy, Kenya

Andrew Peacock / White Rhinoceros (Ceratotherium simum), Ol Pejeta Conservancy, Kenya