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

Marie Read / Northern cardinal (Cardinalis cardinalis) male perched amid snow-covered branches, New York, USA, February.

Roland Seitre / Antoine Cadi, scientist, and assistant measure the shell of an African spurred tortoise (Centrochelys / Geochelone sulcata) Sahel desert, Ferlo North Reserve, Senegal, West Africa, Vulnerable species....

Mark Hamblin / 2020VISION / Mountain hare (Lepus timidus) in winter coat, running across snow, Cairngorms NP, Scotland, January 2010. Photographer quote: "After 4 hours of trudging through deep snow I was completely exhausted an...

Wild Wonders of Europe / Smit / Great pond snail (Lymnaea stagnalis) trying to survive in ponds in broadleaf forest during dry season, Gornje Podunavlje Special Nature Reserve, Serbia, June 2009

Karl Ammann / Baby Western lowland gorilla (Gorilla g gorilla), victim of the illegal bushmeat and pet trades, Central Africa. After shooting an adult gorilla, bushmeat hunters capture the babies for additional pro...

Karl Ammann / Baby Western lowland gorilla (Gorilla g gorilla) head portrait - victim of the illegal bushmeat and pet trade, Pointe Nior, Democratic Republic of Congo. After shooting an adult gorilla, bushmeat hunt...

Ingo Arndt / Japanese macaques grooming in hot thermal spring {Macaca fuscata} Joshin-etsu NP, Japan. These primates can survive winter temperatures below -15 degrees by bathing in the springs

Juergen Freund / Rubbish under a ships' harbour where some species are able to survive, Maluku, Indonesia, November 2018.

Juergen Freund / Rubbish under a ships' harbour where some species are able to survive, Maluku, Indonesia, November 2018.

Marie Read / Northern Cardinal (Cardinalis cardinalis) female perched amid berries and seedheads with falling snow, New York, USA. November. Non-ex.

Stefan Christmann / Emperor penguin (Aptenodytes forsteri) dead chick and unhatched egg on ice, unable to survive harsh winter conditions. Atka Bay, Antarctica. September.