David Tipling / Emperor penguin chicks (Aptenodytes forsteri) in large creche, -40C and 70mph wind. Dawson-Lambton glacier, Weddell Sea, Antarctica
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Doug Gimesy / Sprinkler system set up high in the trees at Melbourne's Yarra Bend Grey-headed flying-fox (Pteropus poliocephalus) colony in an attempt to try and keep them cool during an extreme heat event whe...
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Peter Cairns / 2020VISION / Whooper swans (Cygnus cygnus) gathered at sunset on Loch Insh, Cairngorms National Park, Scotland, UK, February. Did you know: Whooper swans can withstand temperatures of -40C whilst migrating.
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Bryan and Cherry Alexander / Frost smoke rising from open sea at -40C as Inuit hunter waits at seal's breathing hole near floe edge. Thule, Northwest Greenland, 1980.
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Bryan and Cherry Alexander / Inuit hunter and dog team silhouetted against sea smoke mist, which forms at -40C. Northwest Greenland, 1980.