Roy Mangersnes / Dead Marine iguana (Amblyrhynchus cristatus) on the coastal rocks on Santiago Island, Galapagagos, April 2016. It probably died of starvation as much of the algae in the region have died off due to un...

Thomas Marent / Gelada Baboon (Theropithecus gelada) male and females huddling for warmth, Simien Mountains National Park, Ethiopia

Thomas Marent / Gelada Baboon (Theropithecus gelada) group huddling for warmth, Simien Mountains National Park, Ethiopia

Ole Jorgen Liodden / Man resting by tree with small fire, with Northern Lights in the sky above, Valdres, Norway, January 2005.

Stefan Christmann / Emperor Penguin (Aptenodytes forsteri) huddling with chicks for warmth, Queen Maud Land, Antarctica

Will Burrard-Lucas / Meerkat (Suricata suricatta) standing alert on hind legs at sunset, Makgadikgadi Pans, Botswana.

Diane McAllister,Diane McAllister / Japanese Macaque (Macaca fuscata) male and female huddle together during a light snowfall in Jigokudani Japan, January

David Tipling / Emperor Penguins, (Aptenodytes forsteri), young huddling together to form a creche to keep warm, during storm, Dawson Lambton Glacier, Weddell Sea, Antarctica

Tui De Roy / Marine iguana (Amblyrhynchus cristatus) males migrating to breeding areas at the onset of warm season. Galapagos Islands, Ecuador, December.

Andrew Parkinson / 2020VISION / Golden plover Pluvialis apricaria Profile of an adult on open moorland. Shetland Islands, Scotland, UK Photographer.Andrew Parkinson

Klaus Echle / Red Fox (Vulpes vulpes) with wet fur in warm light. Black Forest, Germany, November.

John MacPherson / 2020VISION / Bottlenose dolphin (Tursiops truncatus) two breaching in evening light, Moray Firth, Inverness-shire, Scotland, UK, August, sequence 2/2. Photographer quote: 'A day of overcast cloud cleared in the la...