Francois Savigny / Snow leopard. Wild {Panthera uncia} Ladakh, India

Morley Read / Slow motion clip of rain falling into the rainforest understory, Orellana Province, Ecuador.

Jami Tarris / Arctic Fox (Alopex lagopus) running in snow, Spitsbergen, Svalbard, Norway

Martin Willis / Spinifex Grass (Spinifex sp) in desert, Kata Tjuta, Australia

Martin Willis / Mangroves along coast and boat, Deluge Inlet, Hinchinbrook Island National Park, Queensland, Australia

Danny Green / Reindeer (Rangifer tarandus), two standing on ridge in blizzard. Svalbard, Norway. April.

Danny Green / Reindeer (Rangifer tarandus) hunkering down in snow during blizzard. Svalbard, Norway, April.

Nick Garbutt / American bison (Bison bison) female covered in hoar frost near hot spring, portrait. Midway Geyser Basin, Yellowstone National Park, USA. February.

Gary Bell/ Oceanwide / Tropical island, Keeling Islands, Australia

Gary Bell/ Oceanwide / Tropical island, Keeling Islands, Australia

Gary Bell/ Oceanwide / Tropical island, Keeling Islands, Australia

Gary Bell/ Oceanwide / Tropical island, Keeling Islands, Australia

Gary Bell/ Oceanwide / Lichen (Caloplaca sp) covered coastal rock, Flinders Island, Tasmania, Australia

Gary Bell/ Oceanwide / Coastal rock arch at sunset, Bermagui, New South Wales, Australia

Gary Bell/ Oceanwide / Cave along coast, Loch Ard Gorge, Port Campbell National Park, Victoria, Australia

Gary Bell/ Oceanwide / Coast, Red Rock Beach, Phillip Island, Victoria, Australia

Gary Bell/ Oceanwide / Tropical beach, Keeling Islands, Australia

Gary Bell/ Oceanwide / Tropical island, Keeling Islands, Australia

Gary Bell/ Oceanwide / Tropical island, Keeling Islands, Australia

Gary Bell/ Oceanwide / Coconut Palm (Cocos nucifera) fruit germinating on tropical beach, Keeling Islands, Australia

Gary Bell/ Oceanwide / Coconut Palm (Cocos nucifera) fruit germinating on tropical beach, Keeling Islands, Australia

Gary Bell/ Oceanwide / Tropical reef, Great Barrier Reef, Queensland, Australia

Gary Bell/ Oceanwide / Red tide, Heron Island, Great Barrier Reef, Queensland, Australia

Heather Angel / Giant panda (Ailuropoda melanoleuca) portrait, in falling snow. Captive bred, in enclosure, Panda Breeding Centre, Wolong, Sichuan Province, China. February 2008.

Mark Raycroft / Pronghorn Antelope (Antilocapra americana) running in winter, North America

Mark Raycroft / Pronghorn Antelope (Antilocapra americana) running in winter, North America

Jeff Foott / California Poppy (Eschscholzia californica) and Goldfield (Lasthenia californica) flowers,superbloom, Antelope Valley, California

Jeff Foott / Purple Owl's Clover (Castilleja exserta) and Goldfield (Lasthenia californica) flowers, super bloom, Carrizo Plain National Monument, California

Jeff Foott / California Poppy (Eschscholzia californica) and Goldfield (Lasthenia californica) flowers,super bloom, Antelope Valley, California

Jeff Foott / California Poppy (Eschscholzia californica) and Goldfield (Lasthenia californica) flowers, super bloom, Antelope Valley, California

Jeff Foott / Park Avenue view, Arches National Park, Utah

Jeff Foott / Tower Arch, Arches National Park, Utah

Jeff Foott / Marching Men formation, Arches National Park, Utah

Jeff Foott / Marching Men formation, Arches National Park, Utah

Jeff Foott / Full moon over Balanced Rock formation, Arches National Park, Utah

Jeff Foott / Turret Arch in winter, La Sal Mountains, Arches National Park, Utah

Jeff Foott / Double O Arch, Arches National Park, Utah

Jeff Foott / Mule-ears (Wyethia amplexicaulis) flowers at the The Organ, Arches National Park, Utah

Jeff Foott / Marching Men sandstone formation, Arches National Park, Utah

Jeff Foott / Skyline Arch, Arches National Park, Utah

Jeff Foott / Delicate Arch and the La Sal Mountains, Arches National Park, Utah

Jeff Foott / Paintbrush (Castilleja sp) flowers, Arches National Park, Utah

Jeff Foott / Winding road and sandstone formations, La Sal Mountains, Arches National Park, Utah

Jeff Foott / Sandstone rock formations, La Sal Mountains, Arches National Park, Utah

Jack Dykinga / Saguaro cacti (Carnegia gigantea) at sunset, during a summer rain storm. Saguaro National Park, Sonoran Desert, Arizona, USA, August. Digital composite.

Colin Monteath/ Hedgehog House / Icebergs in winter in lake, Hooker Glacier, Mount Cook, Mount Cook National Park, New Zealand

Yashpal Rathore / Bengal tiger (Panthera tigris tigris) walking at night, with monsoon clouds and lightning. Kanha National Park, Central India. Dominant male (T29)

SCOTLAND: The Big Picture / Big storm hitting cliffs, with waves breaking over the top, Shetland, Scotland, UK, July.

SCOTLAND: The Big Picture / Big storm hitting cliffs, with waves breaking over the top, Shetland, Scotland, UK, July.

Oscar Dewhurst / Red Fox (Vulpes vulpes), hunting in the frost, London, UK. November

Shane P. White / Winnifred Beach, Jamaica

Tui De Roy / Marine iguana (Amblyrhynchus cristatus) starved to death due to El Nino effect, Puerto Ayora / Academy Bay, Santa Cruz Island, Galapagos

Marie Read / Snow buntings (Plectrophenax nivalis) flock in flight during a snowstorm, New York, USA, January.

Marie Read / Loggerhead shrike (Lanius ludovicianus) on an ice-covered fence after an ice storm, Anahuac National Wildlife Refuge, Texas, USA. January.

Tim Fitzharris / Wildflowers and cacti, Caprock Canyons State Park, Texas

Tim Fitzharris / Rock arch, Atuh Beach, Nusa Penida, Bali, Indonesia

Shane P. White / Tephra during volcanic eruption, Mount Yasur, Tanna Island, Vanuatu

Shane P. White / Coconut Palm (Cocos nucifera) tree on beach, Port Olry, Espiritu Santo, Vanuatu

Shane P. White / Malmas Island, Espiritu Santo, Vanuatu

Shane P. White / Coconut Palm (Cocos nucifera) tree on coast, Aimbuei Bay, Aore Island, Vanuatu

Shane P. White / Coconut Palm (Cocos nucifera) tree on coast, Aimbuei Bay, Aore Island, Vanuatu

Shane P. White / Alexandrian Laurel (Calophyllum inophyllum) tree on coast, Aimbuei Bay, Aore Island, Vanuatu

Stefan Christmann / Drifts of snow around glacier, Atka Bay, Queen Maud Land, Antarctica. October 2017.

Stefan Christmann / Emperor penguin (Aptenodytes forsteri) chicks lying down in the cold, Atka Bay, Queen Maud Land, Antarctica. October.

Stefan Christmann / Emperor penguin (Aptenodytes forsteri) group walking infront of iceberg, Atka Bay, Queen Maud Land, Antarctica. October.

Stefan Christmann / Emperor penguin (Aptenodytes forsteri) with creche of chicks, Atka Bay, Queen Maud Land, Antarctica. October.

Stefan Christmann / Emperor penguin (Aptenodytes forsteri) chicks in snow, Atka Bay, Queen Maud Land, Antarctica. October.

Markus Varesvuo / Black woodpecker (Dryocopus martius) male perched on tree trunk, trees covered in hoar frost. Kuusamo, Northern Ostrobothnia, Finland. February. Commended in the Birds in the Environment Category of t...

Staffan Widstrand / Grey-headed woodpecker (Picus canus) on tree trunk in falling snow. Kalvtrask, Vasterbotten, Lapland, Sweden. January.

Jeff Foott / Cottonwood (Populus sp) trees in autumn, Grand Staircase-Escalante National Monument, Utah

Jeff Foott / Mount Chephren, Banff National Park, Alberta, Canada

Jeff Foott / Mountains and river after autumn snowfall, Sunwapta River, Jasper National Park, Alberta, Canada

Jeff Foott / Mixed coniferous and deciduous forest after snowfall in autumn, Wells Gray Provincial Park, British Columbia, Canada

Jeff Foott / Waterfall after autumn snowfall, Tangle Creek Falls, Jasper National Park, Alberta, Canada

Jeff Foott / Waterfall after autumn snowfall, Tangle Creek Falls, Jasper National Park, Alberta, Canada

Jeff Foott / Mount Gould, Glacier National Park, Montana

Jeff Foott / Morning Glory Pool, Upper Geyser Basin, Yellowstone National Park, Wyoming

Jeff Foott / Bridal Veil Falls, Yosemite National Park, California

Jeff Foott / Hiker near waterfall and rainbow, Nevada Fall, Yosemite National Park, California

Jeff Foott / Waterfall in winter, Horsetail Fall, Yosemite National Park, California

Jeff Foott / Geyser spouting, Old Faithful, Yellowstone National Park, Wyoming

Jeff Foott / Sandstone rock formations, Theodore Roosevelt National Park, North Dakota

Jeff Foott / Half Dome, Yosemite National Park, California

Jeff Foott / Granite cliff in mist, El Capitan, Yosemite National Park, California

Jeff Foott / Yosemite Falls and Merced River, Yosemite National Park, California

Jeff Foott / Bear Grass (Xerophyllum tenax) flowering, Mount Reynolds, Glacier National Park, Montana

Jeff Foott / Yosemite Falls, Yosemite National Park, California

Stefan Christmann / Emperor penguin (Aptenodytes forsteri) males in breeding colony huddling during winter storm. Atka Bay, Antarctica. July.

Stefan Christmann / Emperor penguin (Aptenodytes forsteri) males in breeding colony incubating eggs, huddling during winter storm. Penguins on outside repositioning themselves to gain protection from weather. Atka Bay, A...

Stefan Christmann / Emperor penguin (Aptenodytes forsteri) standing in drifting snow, silhouetted by sun. Atka Bay, Antarctica. September.

Stefan Christmann / Emperor penguin (Aptenodytes forsteri), three in a row, walking through drifting snow to feed young. Atka Bay, Antarctica. September.

Sven Zacek / Sun dog over trees in frosty landscape. Tartumaa, Southern Estonia. December 2015.

Sven Zacek / White-tailed sea eagle (Haliaeetus albicilla) flying over frost and snow covered forest. Tartumaa, Southern Estonia. January 2011.

John Cancalosi / Rain storm in the Sonoran desert, with Saguaro cacti (Carnegiea gigantea), near Tucson, Arizona. 2018.

Paul Souders/ Worldfoto / Red algae and salt formations, Lake Natron, Ol Doinyo Lengai, Tanzania

Paul Souders/ Worldfoto / Forested hills in mist, Ngong Hills, Kenya