Sven Zacek / Otter (lutra lutra) eating Gudgeon (Gobio gobio) in Southern Estonia, January.

Pal Hermansen / Inuit sled dogs resting, near Ittoqortoormiit, Scoresbysund, Greenland. Second Prize in the Nature category of the Spider Black and White Photography Competition 2015.

Danny Green / Snow monkey (Macaca fuscata) close up with eyes cast down, Nagano, Japan, February

Ole Jorgen Liodden / King penguins (Aptenodytes patagonicus) walking in habitat, with mountains, South Georgia, November 2008.

Theo Webb / Bengal tiger (Panthera tigris) cubs following their mother, Bandhavgarh National Park, India.

Solvin Zankl / Brown hyena (Hyaena brunnea) stalking fur seal (Arctocephalus pusillus) pup, Sperrgebiet National Park, Namibia, December. Sequence 1/8

Tui De Roy / Snares-crested penguin (Eudyptes robustus) walking along rocks, Snares Island, New Zealand Sub-Antarctic Islands. Endemic and vulnerable species.

Andy Trowbridge / Yellow-eyed penguin (Megadyptes antipodes) walking up a sand dune towards its nest. Otago Peninsula, Otago, South Island, New Zealand. February. Endangered Species.

Mark MacEwen / Japanese macaque (Macaca fuscata) relaxing in hot spring in Jigokudani, Yaenkoen, Nagano, Japan, February.

Robin Chittenden / Highland cow (Bos taurus) feeding in long grass, Strumpshaw Fen RSPB, Norfolk, UK, May.

Inaki Relanzon / Australian Sea Lion (Neophoca cinerea) sitting on beach with one flipper up, Seal Bay Conservation Park, Kangaroo Island, South Australia State, Australia.

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...