Florian Möllers / Golden Snub-nosed Monkey (Rhinopithecus roxellana qinlingensis) portrait. Zhouzhi Nature Reserve, Shaanxi, China, October.

Steven Kazlowski / Polar bear (Ursus maritimus) curious cub sits up on its hind legs, paw raised, and tries to balance itself, along Bernard Spit in autumn, 1002 area of the Arctic National Wildlife Refuge, Alaska, US...

Andy Rouse / Black rhinoceros (Diceros bicornis) head portrait, Swaziland, critically endangered species

Andy Rouse / Portrait of a Mountain Gorilla infant (Gorilla beringei). Rwanda, Africa

Alex Mustard / An Australian Sea Lion (Neophoca cinerea) bathing in the sun at the surface. Kangaroo Island, South Australia, Australia. Southern Ocean. November

Ole Jorgen Liodden / Blue Whale (Balaenoptera musculus) tail fluke above water surface. Spitsbergen, Svalbard, August.

Matthew Maran / Sea otter (Enhydra lutris) resting at the sea surface with paws in the air. Barkley Sound, Vancouver Island, Canada, August.

Mark Carwardine / Head portrait of Sumatran rhino (Dicerorhinus sumatrensis) Captive-Sumatran Rhino Sanctuary, within Way Kambas National Park, Lampung Province, southern Sumatra, Indonesia

Kevin Schafer / Darwin's Fox (Pseudalopex fulvipes) portrait, in temperate rainforest, Chiloe Island, Chile, November, Critically Endangered

Andy Rouse / Polar Bear (Ursus maritimus) portrait in sea-ice landscape. Wide angle / fish-eye shot. Svalbard, Norway, September.

Ole Jorgen Liodden / Polar Bear (Ursus maritimus) looking across ice floe seascape. Nordaustlandet, Svalbard, August.

Andy Rouse / Polar Bear (Ursus maritimus) sleeping on ice. Svalbard, Norway, September.