Tony Wu / North Pacific humpback whale (Megaptera novaeangliae kuzira) breaching, Icy Strait, Alaska, USA. July.

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

Ingo Arndt / Harp seal (Phoca groenlandicus) pup on sea ice looking down into icy water, Magdalen Islands, Gulf of St Lawrence, Quebec, Canada, March.

Suzi Eszterhas / Sea Otter (Enhydra lutris) pair in icy water, Prince William Sound, Alaska

Aflo / Red-Crowned Crane (Grus japonensis) flock roosting in icy river in winter, Tsurui, Hokkaido, Japan. February.

Floris van Breugel / Cuernos del Paine reflected in icy lake at dawn, Torres del Paine National Park, Chile, June 2014.

Markus Varesvuo / Mallard duck (Anas platyrhynchos) drake amongst icy reeds, Helsinki, Finland, February

Jack Dykinga / Sandhill crane (Grus canadensis) landing in icy pond filled with snow geese (Chen caerulescens) Bosque del Apache, New Mexico. January 2013

Theo Bosboom,Theo Bosboom / Icy waterfall, Getzbach, Belgian Ardennes, February 2008

Graham Eaton,Graham Eaton / Highland cow with calf on moorland in snow above Malham, Yorkshire, winter.

Graham Eaton,Graham Eaton / Highland cow next to road above Malham, Yorkshire, winter.

Diane McAllister,Diane McAllister / Japanese Macaque (Macaca fuscata) juvenile approaches the hot springs and feeding area covered in icy snow from the cold night before in Jigokudani, Japan, January