Colin Monteath / Mt Sefton, climber at dawn above Mueller hut and cloud-filled Mueller Glacier, Mt Cook National Park, New Zealand
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Flip Nicklin / Whale Shark (Rhincodon typus) surrounded by several scuba divers, threatened, Cocos Island, Costa Rica
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Flip Nicklin / Two scuba divers swimming through sea cave with schooling Grunts, Cocos Island, Costa Rica
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Gerry Ellis / Dromedary (Camelus dromedarius) trio with Bedouins at sunset, Oasis Dakhia, Great Sand Sea, Sahara Desert, Egypt
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Gerry Ellis / African Lion (Panthera leo) kill surrounded by tourists, Tanzania border, Kenya
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Tui De Roy / Glacier with tourist expedition in inflatable zodiac, southern Greenland Fjords, Greenland
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Colin Monteath / Hiker, Cerro Torre and Fitzroy reflected in small pond at dawn, Loma Plieque Tumbado, Los Glaciares National Park, Patagonia, Argentina
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Colin Monteath / Mountaineer enjoying the view of Mt Everest and the Himalayan Mountains at sunset from Gokyo Ri, Khumbu, Nepal
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Yva Momatiuk & John Eastcott / Lone hiker walking along the base of a sandstone butte strong pattern of wavy lines in petrified sand dunes are exposed by erosion, Vermilion Cliffs National Monument, Colorado Plateau, Utah
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Yva Momatiuk & John Eastcott / Lone hiker walking on colorful sandstone strong pattern of wavy lines in petrified sand dunes are exposed by erosion, Vermilion Cliffs National Monument, Colorado Plateau, Utah
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Yva Momatiuk & John Eastcott / Alaska Range in spring snow, photographer resting in valley below mountains, Denali National Park and Preserve, Alaska
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Yva Momatiuk & John Eastcott / Coyote (Canis latrans) looking for handouts from tourists, Mather Point parking lot on South Rim, Grand Canyon National Park, Arizona